tx: sync with transifex

116 files changed, 10261 insertions, 10255 deletions

diff --git a/po/af.po b/po/af.po
index 9bcfcc8..9b15e73 100644
--- a/po/af.po
+++ b/po/af.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Afrikaans (https://www.transifex.com/mate/teams/13566/af/)\n"
@@ -576,12 +576,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Sakrekenaar"
 
@@ -946,7 +946,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -957,7 +957,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -974,7 +974,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -994,7 +994,7 @@ msgstr ""
 "--g-fatal-warnings                Maak alle waarskuwings fataal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1004,13 +1004,13 @@ msgstr ""
 "-s, --solve <vergelyking>         Los die gegewe vergelyking op"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve vereis 'n vergelyking om op te los"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Onbekende argument '%s'"
@@ -1201,12 +1201,12 @@ msgid "Boolean NOT"
 msgstr "Boolese NIE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Heelgetaldeel"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Breukdeel"
 
@@ -1291,28 +1291,28 @@ msgid "Straight Line Depreciation"
 msgstr "Reguitlynwaardevermindering"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binêr"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktaal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desimaal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadesimaal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1321,7 +1321,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1329,103 +1329,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Afrond"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Vloer"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Plafon"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Teken"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1441,76 +1441,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Geen geskiedenis vir ontdoen nie"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Geen geskiedenis vir herdoen nie"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Geen sinvolle waarde om te stoor nie"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Oorloop. Probeer 'n groter woordgrootte"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Onbekende veranderlike '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funksie '%s' is nie gedefinieer nie"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Onbekende omskakeling"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Ongeldige uitdrukking"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Moet 'n heelgetal hê om in faktore te ontbind"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Geen sinvolle waarde vir bisgewyse skuif"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Vertoonde waarde nie 'n heelgetal nie"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1562,19 +1562,19 @@ msgid "Show %d decimal _places"
 msgstr "Wys %d desimale _plekke"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Kan nie hulplêer oopmaak nie"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1582,7 +1582,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1590,31 +1590,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
@@ -1622,84 +1622,84 @@ msgstr ""
 "  maiatoday https://launchpad.net/~maiatoday"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Sakrekenaar"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modus"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Bekyk"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hulp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basies"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Gevorderd"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansieel"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Inhoud"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopieer"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Plak"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Ontdoen"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Herdoen"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Voorkeure"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Verlaat"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Aangaande"
 
@@ -1748,19 +1748,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritme van nul is ongedefinieerd"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1768,17 +1768,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Die mag van nul is ongedefinieerd vir 'n negatiewe eksponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/am.po b/po/am.po
index 5266deb..2bbe485 100644
--- a/po/am.po
+++ b/po/am.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: samson <[email protected]>, 2020\n"
 "Language-Team: Amharic (https://www.transifex.com/mate/teams/13566/am/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "የ ሜት መደመሪያ "
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "መደመሪያ "
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "ያልታወቀ ክርክር '%s'"
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Integer Component"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Fractional Component"
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ክብ "
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "ወለል "
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "ጣራ "
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ምልክት"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "ተገባሩ '%s' አልተገለጸም "
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "በማስላት ላይ "
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "የ እርዳታ ፋይል መክፈት አልተቻለም"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,113 +1551,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Samson-Belete-Belayineh"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_ማስሊያ"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_ዘዴ "
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_መመልከቻ"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_እርዳታ"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_መሰረታዊ"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_የረቀቀ "
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_ገንዘብ"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_ይዞታዎች"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_ኮፒ "
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_መለጠፊያ "
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_መተው"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_እንደገና መስሪያ"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_ምርጫዎች "
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_ማጥፊያ"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_ስለ"
 
@@ -1706,19 +1706,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1726,17 +1726,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ar.po b/po/ar.po
index 4fd86c0..72dec31 100644
--- a/po/ar.po
+++ b/po/ar.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: مهدي السطيفي <[email protected]>, 2020\n"
 "Language-Team: Arabic (https://www.transifex.com/mate/teams/13566/ar/)\n"
@@ -577,12 +577,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "حاسبة متّة"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "الحاسِبة"
 
@@ -948,7 +948,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "خطأ: الرّقم الدّال على زمن يجب أن يكون موجبًا"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -959,7 +959,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -976,7 +976,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -996,7 +996,7 @@ msgstr ""
 "  --g-fatal-warnings              جعل جميع التّحذيرات خطيرة"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1006,13 +1006,13 @@ msgstr ""
 "  -s, --solve <معادلة>          لحلّ المُعادلة المعطاة"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "يتطلب المُعطى --solve معادلةً لحلّها"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "مُعطى غير معروف '%s'"
@@ -1203,12 +1203,12 @@ msgid "Boolean NOT"
 msgstr "\"ليس\" منطقية"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "الجزء الصّحيح"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "الجزء الكسري"
 
@@ -1293,28 +1293,28 @@ msgid "Straight Line Depreciation"
 msgstr "الاستهلاك الثّابت"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ثنائي"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ثماني"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "عشري"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ستّة عشر"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1327,7 +1327,7 @@ msgstr[5] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1339,103 +1339,103 @@ msgstr[4] ""
 msgstr[5] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "الدّورة"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "الحد الأدنى"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "الحد الأعلى"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "الإشارة"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1451,76 +1451,76 @@ msgid "Switch conversion units"
 msgstr "بدّل بين وحدات التحويل"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "لا يوجد تأريخ للتّراجع"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "لا يوجد تأريخ للتّكرار"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "القيمة غير صالحةٍ لحفظها"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "تجاوز. جرّب كلمةً أكبر حجمًا"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "مُتغير غير معروف '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "الدّالة %s غير معرّفة"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "تحويل غير معروف"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "جملة غير صالحة عند المُعطى '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "جملة غير صالحة"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "يجري الحساب"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "تحتاج لعددٍ صحيح لتحليله إلى عوامله"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "القيمة غير صالحةٍ لتحويلها"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "اعرض قيمةً بدلًا من العدد الصحيح"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1572,19 +1572,19 @@ msgid "Show %d decimal _places"
 msgstr "أظهر %d خا_نة عُشرية"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "تعذّر فتح ملفِ المُساعدة"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1592,7 +1592,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1600,115 +1600,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "فريق عيون العرب للترجمة http://www.arabeyes.org :\n"
 "مصعب الزعبي\t<[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_حاسبة"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "الو_ضع"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_عرض"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_مساعدة"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_أساسي"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "مُ_تقدم"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_مصرفي"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "برم_جي"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "الم_حتويات"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "ا_نسخ"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ا_لصق"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_تراجع"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "أ_عِد"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "ال_تّفضيلات"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_خروج"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_عنْ"
 
@@ -1757,19 +1757,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "لوغاريتم الصّفر غير مُعرّف"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "القسمة المُعاملية مُعرّفة فقط على الأعداد الصّحيحة"
 
@@ -1777,17 +1777,17 @@ msgstr "القسمة المُعاملية مُعرّفة فقط على الأع�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "قوة الصّفر غير مُعرّفة عند الأُسِ السّالب"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/as.po b/po/as.po
index 75dd974..233aaed 100644
--- a/po/as.po
+++ b/po/as.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Assamese (https://www.transifex.com/mate/teams/13566/as/)\n"
@@ -575,12 +575,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "গণক"
 
@@ -947,7 +947,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "ত্ৰুটি: ম্যাদৰ সংখ্যা ধনাত্মক হব লাগিব"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -958,7 +958,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -975,7 +975,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -995,7 +995,7 @@ msgstr ""
 "  --g-fatal-warnings              সকলো সতৰ্কবাৰ্তা মাৰাত্মক দেখুৱাওক"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1005,13 +1005,13 @@ msgstr ""
 "  -s, --solve <equation>          প্ৰদান কৰা সমীকৰণ সমাধান কৰক"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "তৰ্ক --solve ৰ সমাধান কৰিবলে এটা সমীকৰণৰ প্ৰয়োজন"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "অজ্ঞাত তৰ্ক '%s'"
@@ -1202,12 +1202,12 @@ msgid "Boolean NOT"
 msgstr "বুলিয়ান NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "পূৰ্ণসংখ্যা উপাদান"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "ভগ্নাংশ উপাদান"
 
@@ -1292,28 +1292,28 @@ msgid "Straight Line Depreciation"
 msgstr "পোন শাৰী স্খলন"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "বাইনাৰি"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "অক্টেল"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "দশমীক"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "হেক্সাডেচিমেল"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1322,7 +1322,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1330,103 +1330,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ঘূৰণীয়া"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Floor"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Ceiling"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "চিহ্ন"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1442,76 +1442,76 @@ msgid "Switch conversion units"
 msgstr "পৰিবৰ্তন এককসমূহ অদল বদল কৰক"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "কাৰ্য্য বাতিলৰ কোনো ইতিহাস নাই"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "কোনো পুনৰাবৃত্তি ইতিহাস নাই"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "সংৰক্ষণ কৰিবলে কোনো স্বাভাৱিক মান নাই"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "উপচি পৰিছে। এটা ডাঙৰ শব্দ আকাৰ দি চাওক"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "অজ্ঞাত চলক '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "ফলন '%s' ৰ বিৱৰণ দিয়া হোৱা নাই"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "অজ্ঞাত পৰিবৰ্তন"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "টকেন '%s' ত ক্ষতিগ্ৰস্থ অভিব্যক্তি"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "স্খলিত অভিব্যক্তি"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "গণনা কৰা হৈছে"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "গৌণিকৰণৰ বাবে এটা পূৰ্ণসংখ্যাৰ প্ৰয়োজন"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "bitwise স্থানান্তৰৰ বাবে কোনো স্বাভাৱিক মান নাই"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "প্ৰদৰ্শিত মান এটা পূৰ্ণসংখ্যা নহয়"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1563,19 +1563,19 @@ msgid "Show %d decimal _places"
 msgstr "%d দশমিক স্থানসমূহ দেখুৱাওক (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "সহায়িকাৰ ফাইল খুলিবলৈ ব্যৰ্থ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1583,7 +1583,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1591,113 +1591,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "অমিতাক্ষ ফুকন ([email protected])"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ক্যালকুলেটৰ"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "প্ৰদৰ্শন (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "সাহায্য (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "মৌলিক (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "অৰ্থনৈতিক মোড (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "প্রোগ্রামিং (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "বিষয়বস্তু (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "নকল কৰক (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "আঠা লগাওক (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "পূৰ্বাবস্থা (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "পুনঃ কৰক (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "পছন্দ (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "প্ৰস্থান (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "বিষয়ে (_A)"
 
@@ -1746,19 +1746,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "শূন্যৰ লগাৰিথম অবিৱৰিত"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "মডুলাচ হৰণ কেৱল পূৰ্ণসংখ্যাৰ বাবে বিৱৰিত"
 
@@ -1766,17 +1766,17 @@ msgstr "মডুলাচ হৰণ কেৱল পূৰ্ণসংখ্য
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "শূন্যৰ ঘাত এটা ঋণাত্মক ঘাতচিহ্নৰ বাবে অবিৱৰিত"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ast.po b/po/ast.po
index 904cccc..ec6fd36 100644
--- a/po/ast.po
+++ b/po/ast.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Ḷḷumex03, 2020\n"
 "Language-Team: Asturian (https://www.transifex.com/mate/teams/13566/ast/)\n"
@@ -584,12 +584,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -957,7 +957,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Fallu: el númberu de periodos tien de ser positivu"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -968,7 +968,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -985,7 +985,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1005,7 +1005,7 @@ msgstr ""
 "  --g-fatal-warnings              Facer que tolos avisos seyan fatales"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1015,13 +1015,13 @@ msgstr ""
 "  -s, --solve <ecuación>          Resolver la ecuación proporcionada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Parámetru --resolver necesita una ecuación pa resolver"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Parámetru «%s» desconocíu"
@@ -1212,12 +1212,12 @@ msgid "Boolean NOT"
 msgstr "NOT booleanu"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Porción entera"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Porción fraicional"
 
@@ -1302,28 +1302,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depreciación llinial"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binariu"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1332,7 +1332,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1340,103 +1340,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arredondiar"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Suelu"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Techu"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Robla"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1452,76 +1452,76 @@ msgid "Switch conversion units"
 msgstr "Cambear unidaes de conversión"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ensin historia de desfechura"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Ensin historia de re-fechura"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nun hai un valor bonu p'atroxar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Sobrecarga de búfer. Inténtalo con un tamañu de pallabra mayor"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variable desconocida '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La función «%s» nun ta definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversión desconocida"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Espresión mal formada nel token '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Espresión malformada"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculando"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Necesítase un enteru pa factorizar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nun hai un valor bonu pa un desplazamientu de bits"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "El valor amosáu nun ye un enteru"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1573,19 +1573,19 @@ msgid "Show %d decimal _places"
 msgstr "Amosar %d deci_males"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nun pue abrise'l ficheru d'ayuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1593,7 +1593,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1601,113 +1601,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Softastur <www.softastur.org>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mou"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ver"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ayuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Básica"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avanzada"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financiera"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programador"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Índiz"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "A_pegar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Desfacer"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refacer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencies"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Colar"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Tocante a"
 
@@ -1756,19 +1756,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "El logaritmu de cero nun ta definíu"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "La división modular namái ta definida pa enteros"
 
@@ -1776,17 +1776,17 @@ msgstr "La división modular namái ta definida pa enteros"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La potencia de cero nun ta definida pa un esponente negativu"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/az.po b/po/az.po
index 4211f03..f8ddab9 100644
--- a/po/az.po
+++ b/po/az.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Azerbaijani (https://www.transifex.com/mate/teams/13566/az/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Hesaplayıcı"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,31 +1550,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Mətin Əmirov <[email protected]>\n"
@@ -1583,84 +1583,84 @@ msgstr ""
 "<[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Görünüş"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Yardım"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Məzmun"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "Köçü_r"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Yapışdır"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Geri Al"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Təkrarla"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Seçimlər"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "Çı_x"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Haqqında"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/be.po b/po/be.po
index 756bde5..1c025b3 100644
--- a/po/be.po
+++ b/po/be.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Mihail Varantsou <[email protected]>, 2020\n"
 "Language-Team: Belarusian (https://www.transifex.com/mate/teams/13566/be/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Калькулятар MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Калькулятар"
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -934,7 +934,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -951,7 +951,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -971,7 +971,7 @@ msgstr ""
 "  --g-fatal-warnings              Лічыць усе перасцярогі непапраўнымі"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -981,13 +981,13 @@ msgstr ""
 "  -s, --solve <раўнанне>         Рашыць раўнанне"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Аргумент --solve патрабуе раўнання для рашэння"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Невядомы аргумент \"%s\""
@@ -1178,12 +1178,12 @@ msgid "Boolean NOT"
 msgstr "Булева \"Не\""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Цэлая частка"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Дробавая частка"
 
@@ -1268,28 +1268,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Двайковы"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Васьмярковы"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Дзесятковы"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Шаснаццатковы"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1300,7 +1300,7 @@ msgstr[3] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1310,103 +1310,103 @@ msgstr[2] ""
 msgstr[3] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Акругленне"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Падлога"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Столь"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Сігнум"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1422,76 +1422,76 @@ msgid "Switch conversion units"
 msgstr "Пераключыць кірунак канверсіі"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Журнал адраблення аперацый адсутнічае"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Журнал паўтору аперацый адсутнічае"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Няма значэння, якое б можна было запомніць"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Перапаўненне. Паспрабуйце павялічыць памер слова."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Невядомая зменная \"%s\""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Функцыя \"%s\" не азначана"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Невядомы тып канверсіі"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Выраз хібнай формы ў токене \"%s\""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Выраз хібнай формы"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Падлік"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Раскладанне на множнікі прыдатна толькі для цэлых лікаў"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Няма значэння, для якога можна было б ужыць пабітавы зрух"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Значэнне на экране не цэлае"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1543,19 +1543,19 @@ msgid "Show %d decimal _places"
 msgstr "Паказваць %d разрадаў пасля _коскі"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Не выйшла адкрыць файл даведкі"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1563,7 +1563,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1571,115 +1571,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Belarusian Language Linux Team <[email protected]>\n"
 "Mikhas Varantsou <[email protected]> 2014-2016"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Калькулятар"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Рэжым"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Выгляд"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Даведка"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Просты"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Адмысловы"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Фінансавы"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Для праграмавання"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Змесціва"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Капіяваць"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Уставіць"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Адрабіць"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Вярнуць"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Настáўленні"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Выйсці"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Пра аплет"
 
@@ -1729,19 +1729,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Лагарыфм нуля не вызначаны"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Дзяленне па модулю вызначана толькі для цэлых лікаў"
 
@@ -1749,17 +1749,17 @@ msgstr "Дзяленне па модулю вызначана толькі дл�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Узвядзенне нуля ў ступень не вызначана для адмоўнай экспаненты"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/bg.po b/po/bg.po
index 586396a..595d5df 100644
--- a/po/bg.po
+++ b/po/bg.po
@@ -15,8 +15,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Борислав Георгиев <[email protected]>, 2020\n"
 "Language-Team: Bulgarian (https://www.transifex.com/mate/teams/13566/bg/)\n"
@@ -586,12 +586,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Калкулатор"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Калкулатор"
 
@@ -959,7 +959,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Грешка: броят на периодите трябва да е положителен"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -970,7 +970,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -987,7 +987,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1009,7 +1009,7 @@ msgstr ""
 "  --g-fatal-warnings              Всички предупреждения да се считат за грешки"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1019,13 +1019,13 @@ msgstr ""
 "  -s, --solve <уравнение>         Решаване на зададеното уравнение"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Опцията --solve изисква уравнение за изчисляване"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Неизвестна опция „%s“"
@@ -1216,12 +1216,12 @@ msgid "Boolean NOT"
 msgstr "Булева функция „НЕ“"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Целочислена част"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Дробна част"
 
@@ -1306,28 +1306,28 @@ msgid "Straight Line Depreciation"
 msgstr "Линейна амортизация"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Двоична"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Осмична"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Десетична"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Шестнадесетична"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1336,7 +1336,7 @@ msgstr[1] "_%d места"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1344,103 +1344,103 @@ msgstr[0] "%d място"
 msgstr[1] "%d места"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Закръгляне до целочислено"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Закръгляне надолу до целочислено"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Закръгляне нагоре до целочислено"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Знак"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1456,76 +1456,76 @@ msgid "Switch conversion units"
 msgstr "Размяна на единиците за преобразуване"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Няма история за отмяна на действие"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Няма история за повтаряне на отменено действие"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Тази стойност не може да се запази"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Препълване. Опитайте с по-голям размер на думата"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Неизвестна променлива „%s“"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Функцията „%s“ не е дефинирана"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Неизвестна мерна единица"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Грешка в израза при „%s“"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Неправилен израз"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Изчисляване"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "За разлагането на множители е необходимо цяло число"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Тази стойност не може да се отмести побитово"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Показваната стойност не е цяло число"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1577,19 +1577,19 @@ msgid "Show %d decimal _places"
 msgstr "%d _знака след запетаята"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Файлът с помощта не може да бъде отворен"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Екип за документация на MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1597,7 +1597,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1605,31 +1605,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Владимир „Kaladan“ Петков <[email protected]>\n"
@@ -1642,84 +1642,84 @@ msgstr ""
 "Докладвайте за грешки на http://mate.cult.bg/bugs"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Калкулатор"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Режим"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Изглед"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Помощ"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Основен режим"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Разширен режим"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Финансов режим"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "Ре_жим за програмиране"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Ръководство"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Копиране"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Поставяне"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Връщане"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Повтаряне"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Настройки"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Изход"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Относно…"
 
@@ -1770,19 +1770,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Логаритъм от нула е неопределен"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Остатъкът от делене е определен само за цели числа"
 
@@ -1790,17 +1790,17 @@ msgstr "Остатъкът от делене е определен само за
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Степен с основа нула и отрицателен степенен показател е неопределена"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/bn.po b/po/bn.po
index 106d09f..ea999df 100644
--- a/po/bn.po
+++ b/po/bn.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Bengali (https://www.transifex.com/mate/teams/13566/bn/)\n"
@@ -579,12 +579,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ক্যালকুলেটর"
 
@@ -951,7 +951,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -962,7 +962,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 "  --g-fatal-warnings              সকল সতর্কবানী মারাত্মক হিসেবে প্রদর্শন করা হয়"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1007,13 +1007,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "আরগুমেন্ট -- সমাধানের মাধ্যমে একটি সমীকরণ সমাধান করা হয়"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "অজানা আরগুমেন্ট '%s'"
@@ -1204,12 +1204,12 @@ msgid "Boolean NOT"
 msgstr "বুলিয়ান NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1294,28 +1294,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "বাইনারি"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "অক্টাল"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "দশমিক"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "হেক্সা-ডেসিমেল"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1324,7 +1324,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1332,103 +1332,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1444,76 +1444,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "পূর্বাবস্থার কোন ইতিহাস নেই"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "সংরক্ষণের জন্য কোন বাস্তবসম্মত মান পাওয়া যায়নি"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ওভারফ্লো। একটি বড় শব্দ নিয়ে চেষ্টা করুন"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "অজানা চলক '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' ফাংশনটি নির্ধারণ করা নেই"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "অজানা রুপান্তর"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "ত্রুটিযুক্ত এক্সপ্রেশন"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "গৌনিক করার জন্য একটি সংখ্যার প্রয়োজন"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "বিট অনুসারে পরিবর্তন করার জন্য কোন বাস্তবসম্মত মান পাওয়া যায়নি"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1565,19 +1565,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "সহায়িকার ফাইল খুলতে ব্যর্থ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1585,7 +1585,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1593,31 +1593,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "অঙ্কুর প্রকল্পের পক্ষে, সায়মিন্দু দাশগুপ্ত <[email protected]>\n"
@@ -1627,84 +1627,84 @@ msgstr ""
 "ইসরাত জাহান <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ক্যালকুলেটর (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "প্রদর্শন (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "সহায়িকা (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "মূল (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "উচ্চপর্যায়ের (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "অর্থনৈতিক (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "প্রোগ্রামিং (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "বিষয়বস্তু (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "অনুলিপি করুন (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "প্রতিলেপন (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "পূর্বাবস্থা (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "পুনরায় করুন (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "পছন্দ (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "প্রস্থান (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "পরিচিতি (_A)"
 
@@ -1753,19 +1753,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "শূণ্যের লগারিদম নির্ধারণ করা নেই"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "মডুলাস ভাগ শুধুমাত্র সংখ্যার জন্য নির্ধারিত আছে"
 
@@ -1773,17 +1773,17 @@ msgstr "মডুলাস ভাগ শুধুমাত্র সংখ্য
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "শূণ্যের উপর ঋণাত্নক সংখ্যার ঘাত নির্ধারণ করা নেই"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/bn_IN.po b/po/bn_IN.po
index 31f03d7..36edf74 100644
--- a/po/bn_IN.po
+++ b/po/bn_IN.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Bengali (India) (https://www.transifex.com/mate/teams/13566/bn_IN/)\n"
@@ -580,12 +580,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ক্যালকুলেটর"
 
@@ -954,7 +954,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -965,7 +965,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -982,7 +982,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1002,7 +1002,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1010,7 +1010,7 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
@@ -1018,7 +1018,7 @@ msgstr ""
 "আবশ্যক"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "অজানা আর্গুমেন্ট '%s'"
@@ -1209,12 +1209,12 @@ msgid "Boolean NOT"
 msgstr "বুলিয়ান NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1299,28 +1299,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "বাইনারি"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "অক্টাল"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "দশমিক"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "হেক্সা-ডেসিমেল"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1329,7 +1329,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1337,103 +1337,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1449,76 +1449,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "কর্মতালিকা পরিবর্তন করা যাবে না"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "সংরক্ষণের জন্য কোন মান পাওয়া যায়নি"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ওভার-ফ্লো। অধিক বড় শব্দ সহযোগে প্রয়াস করুন"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "অজানা ভেরিয়েবল '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "অজানা রূপান্তর"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "অবৈধ সংখ্যা"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "bitwise শিফ্ট করার জন্য কোন মান পাওয়া যায়নি"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "০,১,২,৩,৪,৫,৬,৭,৮,৯,A,B,C,D,E,F"
 
@@ -1570,19 +1570,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "সহায়িকার ফাইল খুলতে ব্যর্থ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1590,7 +1590,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1598,31 +1598,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "সায়মিন্দু দাশগুপ্ত <[email protected]> \n"
@@ -1630,84 +1630,84 @@ msgstr ""
 "(অঙ্কুর প্রকল্পের পক্ষ থেকে)"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ক্যালকুলেটর (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "প্রদর্শন (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "সাহায্য (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "মৌলিক মোড(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "উন্নত বৈশিষ্ট্য (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "অর্থনৈতিক মোড (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "প্রোগ্রামিং (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "সূচিপত্র (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "কপি করুন(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "পেস্ট করুন (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "পূর্বাবস্থা (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "পুনরাবৃত্তি (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_प्राथमिकताएं"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "প্রস্থান (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "পরিচিতি (_A)"
 
@@ -1756,19 +1756,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1776,17 +1776,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/br.po b/po/br.po
index f077d5a..3526317 100644
--- a/po/br.po
+++ b/po/br.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Alan Monfort <[email protected]>, 2020\n"
 "Language-Team: Breton (https://www.transifex.com/mate/teams/13566/br/)\n"
@@ -554,12 +554,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -924,7 +924,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -933,7 +933,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -945,7 +945,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -958,7 +958,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -966,13 +966,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1163,12 +1163,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1253,28 +1253,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1286,7 +1286,7 @@ msgstr[4] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1297,103 +1297,103 @@ msgstr[3] ""
 msgstr[4] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1409,76 +1409,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1530,19 +1530,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1550,7 +1550,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1558,113 +1558,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Troet eo bet gant"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Gwelout"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Skoazell"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Endal_c'hadoù"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Eilañ"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Pegañ"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Dizober"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Adober"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Gwellvezioù"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Kuitaat"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Diwar-benn"
 
@@ -1713,19 +1713,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1733,17 +1733,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/bs.po b/po/bs.po
index 6a259eb..54edbfe 100644
--- a/po/bs.po
+++ b/po/bs.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Sky Lion <[email protected]>, 2020\n"
 "Language-Team: Bosnian (https://www.transifex.com/mate/teams/13566/bs/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Računalo"
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1283,7 +1283,7 @@ msgstr[2] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1292,103 +1292,103 @@ msgstr[1] ""
 msgstr[2] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1404,76 +1404,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1525,19 +1525,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1545,7 +1545,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1553,113 +1553,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Prevoditelji"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Pogled"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Pomoć"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Sadržaj"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiraj"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Umetni"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Vrati"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Po_novi"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Postavke"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Izađi"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_O"
 
@@ -1708,19 +1708,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1728,17 +1728,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ca.po b/po/ca.po
index a2dd069..e3f1fd4 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -7,15 +7,15 @@
 # Francesc Famadas, 2018
 # Pere Orga <[email protected]>, 2019
 # Stefano Karapetsas <[email protected]>, 2020
-# Robert Antoni Buj Gelonch <[email protected]>, 2021
+# Robert Antoni Buj i Gelonch <[email protected]>, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Robert Antoni Buj Gelonch <[email protected]>, 2021\n"
+"Last-Translator: Robert Antoni Buj i Gelonch <[email protected]>, 2021\n"
 "Language-Team: Catalan (https://www.transifex.com/mate/teams/13566/ca/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -590,12 +590,12 @@ msgstr ""
 "de l'entorn d'escriptori MATE. Si voleu saber més sobre MATE i la "
 "calculadora de MATE, visiteu la pàgina principal del projecte."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora de MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -964,7 +964,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "S'ha produït un error, el nombre de períodes ha de ser positiu"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -975,7 +975,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -992,7 +992,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1012,7 +1012,7 @@ msgstr ""
 "  --g-fatal-warnings              Fa que tots els avisos siguin fatals"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1022,13 +1022,13 @@ msgstr ""
 "  -s, --solve <equation>          Resol l'equació proporcionada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "L'argument --solve requereix una equació a resoldre"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argument desconegut «%s»"
@@ -1219,12 +1219,12 @@ msgid "Boolean NOT"
 msgstr "Operació binària NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Part entera"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Part fraccionària"
 
@@ -1309,28 +1309,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depreciació constant"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binària"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1339,7 +1339,7 @@ msgstr[1] "_%d posicions"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1347,103 +1347,103 @@ msgstr[0] "%d posició"
 msgstr[1] "%d posicions"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arrodoneix"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Cap a baix"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Cap a dalt"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signe"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Velocitat de la llum"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299.792.458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Constant magnètica"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Permitivitat del buit"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Constant de la gravitació"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Constant de Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Càrrega elèctrica elemental"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Massa de l'electró"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Massa del protó"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Nombre d'Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1459,76 +1459,76 @@ msgid "Switch conversion units"
 msgstr "Commuta les unitats de conversió"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Sense historial per desfer"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Sense historial per refer"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "No és un valor adequat per emmagatzemar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Desbordament. Proveu amb una mida més gran de la paraula"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variable desconeguda «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La funció «%s» no és definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversió desconeguda"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "L'expressió a «%s» està mal escrita"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expressió mal escrita"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "S'està calculant"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Cal un enter per factoritzar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "No és un valor adequat per fer un desplaçament bit a bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "El valor a mostrar no és un enter"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1580,19 +1580,19 @@ msgid "Show %d decimal _places"
 msgstr "Mostra %d _posicions decimals"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "No es pot obrir el fitxer d'ajuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Equip de documentació de MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1604,7 +1604,7 @@ msgstr ""
 "ha estat publicada per la Free Software Foundation, ja sigui la versió 2 de "
 "la Llicència o bé (si ho preferiu) qualsevol versió posterior."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1616,7 +1616,7 @@ msgstr ""
 "ADEQUACIÓ PER A CAP FINALITAT DETERMINADA. Consulteu la Llicència Pública "
 "General de GNU per a més informació."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1627,7 +1627,7 @@ msgstr ""
 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 "
 "USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1636,11 +1636,11 @@ msgstr ""
 "Calculadora amb mode financer i científic.\n"
 "Utilitza GNU MPFR %s i GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Quant a la calculadora de MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1648,7 +1648,7 @@ msgstr ""
 "Drets d'autor © 1986–2010 Els autors de GCalctool\n"
 "Drets d'autor © 2011-2021 Els desenvolupadors de MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Blanca Biosca <[email protected]>\n"
@@ -1657,84 +1657,84 @@ msgstr ""
 "Robert Antoni Buj Gelonch <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vista"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ajuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Bàsic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avançat"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financer"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programació"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historial"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contingut"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copia"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Enganxa"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Desfés"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refés"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Neteja l'historial"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferències"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Surt"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Quant a"
 
@@ -1783,19 +1783,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "El logaritme de zero no és definit"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "El factorial només està definit per als nombres reals no negatius"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "La divisió modular només està definida per als enters"
 
@@ -1803,17 +1803,17 @@ msgstr "La divisió modular només està definida per als enters"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La potència de zero no és definida per a un exponent negatiu"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "La funció error només està definida per als nombres reals"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "La funció zeta de Riemann només està definida per a nombres reals ≠1"
 
diff --git a/po/[email protected] b/po/[email protected]
index 8d4011c..9405d18 100644
--- a/po/[email protected]
+++ b/po/[email protected]
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Jose Alfredo Murcia Andrés <[email protected]>, 2020\n"
 "Language-Team: Catalan (Valencian) (https://www.transifex.com/mate/teams/13566/ca@valencia/)\n"
@@ -584,12 +584,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora del MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -958,7 +958,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "S'ha produït un error, el nombre de períodes ha de ser positiu"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -969,7 +969,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -986,7 +986,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1006,7 +1006,7 @@ msgstr ""
 "  --g-fatal-warnings              Fa que tots els avisos siguen fatals"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1016,13 +1016,13 @@ msgstr ""
 "  -s, --solve <equation>          Resol l'equació proporcionada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "L'argument --solve requereix una equació per resoldre"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argument desconegut «%s»"
@@ -1213,12 +1213,12 @@ msgid "Boolean NOT"
 msgstr "Operació lògica NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Part entera"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Part fraccionària"
 
@@ -1303,28 +1303,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depreciació constant"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binària"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1333,7 +1333,7 @@ msgstr[1] "_%d posicions"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1341,103 +1341,103 @@ msgstr[0] "%d posició"
 msgstr[1] "%d posicions"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arredoneix"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "A la baixa"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "A l'alça"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signe"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1453,76 +1453,76 @@ msgid "Switch conversion units"
 msgstr "Commuta les unitats de conversió"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Sense historial per desfer"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Sense historial per refer"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "No és un valor adequat per a emmagatzemar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Desbordament. Proveu-ho amb una mida més gran de paraula"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variable desconeguda «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La funció «%s» no és definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversió desconeguda"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "L'expressió a «%s» està mal escrita"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expressió mal escrita"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "S'està calculant"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Cal un enter per a factoritzar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "No és un valor adequat per a fer un desplaçament bit a bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "El valor mostrat no és un enter"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1574,19 +1574,19 @@ msgid "Show %d decimal _places"
 msgstr "Mostra %d _posicions decimals"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "No s'ha pogut obrir el fitxer d'ajuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Equip de documentació del MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1594,7 +1594,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1602,31 +1602,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Quico Llach <[email protected]>\n"
@@ -1637,84 +1637,84 @@ msgstr ""
 "Equip LliureX: Pilar Embid <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vista"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ajuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Bàsic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avançat"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financer"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programació"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Continguts"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copia"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Enganxa"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Desfés"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refés"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferències"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Ix"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Quant a"
 
@@ -1763,19 +1763,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "El logaritme de zero no està definit"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "La divisió modular només està definida per a enters"
 
@@ -1783,17 +1783,17 @@ msgstr "La divisió modular només està definida per a enters"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La potència de zero no està definida per a un exponent negatiu"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/cmn.po b/po/cmn.po
index 1bc8a73..9bd321f 100644
--- a/po/cmn.po
+++ b/po/cmn.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: 趙惟倫 <[email protected]>, 2020\n"
 "Language-Team: Chinese (Mandarin) (https://www.transifex.com/mate/teams/13566/cmn/)\n"
@@ -554,12 +554,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE 計算機"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "計算機"
 
@@ -924,7 +924,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "錯誤：週期數必須為正"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -935,7 +935,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -951,7 +951,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -971,7 +971,7 @@ msgstr ""
 "  --g-fatal-warnings              將所有警告設為嚴重的"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -981,13 +981,13 @@ msgstr ""
 "  -s，--solve <equation>          解開指定的算式"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "引數 --solve 需要指定想解開的方程式"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "不明的引數「%s」"
@@ -1178,12 +1178,12 @@ msgid "Boolean NOT"
 msgstr "布林 NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "整數部分"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "小數部分"
 
@@ -1268,28 +1268,28 @@ msgid "Straight Line Depreciation"
 msgstr "直線折舊法"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "2 進位"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "8 進位"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "10 進位"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "16 進制數字"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1297,110 +1297,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "四捨五入"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "下限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "上限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "符號函數"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1416,76 +1416,76 @@ msgid "Switch conversion units"
 msgstr "切換轉換單位"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "沒有復原紀錄"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "沒有取消復原紀錄"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "沒有正常數值可以儲存"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "溢位。請嘗試更大的字詞大小"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "不明的變數「%s」"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "尚未定義函數「%s」"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "不明的換算"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "算式中的符號「%s」錯誤"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "算式錯誤"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "計算中"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "需要整數才能因數分解"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "沒有正常數值可以進行移位"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "顯示的數值不是整數值"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0，1，2，3，4，5，6，7，8，9，A，B，C，D，E，F"
 
@@ -1537,19 +1537,19 @@ msgid "Show %d decimal _places"
 msgstr "顯示小數點後 %d 位數(_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "無法開啟求助檔案。"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1557,7 +1557,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1565,31 +1565,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Woodman Tuen <[email protected]>, 2005-06\n"
@@ -1597,84 +1597,84 @@ msgstr ""
 "趙惟倫 <[email protected]>, 2013"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "計算機(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "檢視(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "求助(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "基本模式(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "進階模式(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "財務計算模式(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "軟體開發(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "內容(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "拷貝(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "貼上(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "復原(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "取消復原(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "偏好設定(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "離開(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "關於(_A)"
 
@@ -1723,19 +1723,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "0 的對數並無意義"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "餘數除法只能用於整數值"
 
@@ -1743,17 +1743,17 @@ msgstr "餘數除法只能用於整數值"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "負數的 0 次方並無意義"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/crh.po b/po/crh.po
index 5364757..250a2da 100644
--- a/po/crh.po
+++ b/po/crh.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Crimean Turkish (https://www.transifex.com/mate/teams/13566/crh/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,115 +1550,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
 "  Reşat SABIQ https://launchpad.net/~tilde-birlik"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Körünim"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Yardım"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_İçindekiler"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopyala"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Y_apıştır"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Keri yap"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Kene _yap"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Tercihler"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Çıq"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Aqqında"
 
@@ -1707,19 +1707,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1727,17 +1727,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/cs.po b/po/cs.po
index ae2c433..e9eaf0d 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -11,14 +11,14 @@
 # Stefano Karapetsas <[email protected]>, 2020
 # Michal <[email protected]>, 2020
 # ToMáš Marný, 2020
-# Lucas Lommer <[email protected]>, 2020
+# Lukáš Lommer <[email protected]>, 2020
 # Roman Horník <[email protected]>, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Roman Horník <[email protected]>, 2021\n"
 "Language-Team: Czech (https://www.transifex.com/mate/teams/13566/cs/)\n"
@@ -591,12 +591,12 @@ msgstr ""
 " Pokud byste se chtěli dozvědět více o MATE a MATE Calc, navštivte domovskou"
 " stránku projektu."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Kalkulačka"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulačka"
 
@@ -964,7 +964,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Chyba: počet období musí být kladný"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -975,7 +975,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -992,7 +992,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1012,7 +1012,7 @@ msgstr ""
 "  --g-fatal-warnings              Všechna varování budou kritická"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1022,13 +1022,13 @@ msgstr ""
 "  -s, --solve <rovnice>         Vyřešit zadanou rovnici"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Přepínač --solve vyžaduje rovnici, která se má vyřešit"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Neznámý přepínač „%s“"
@@ -1219,12 +1219,12 @@ msgid "Boolean NOT"
 msgstr "Logická negace NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Celá část"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Desetinná část"
 
@@ -1309,28 +1309,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineární odpisy"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binární"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Osmičková"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desítková"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimální"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1341,7 +1341,7 @@ msgstr[3] "_%d míst"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1351,103 +1351,103 @@ msgstr[2] "%d míst"
 msgstr[3] "%d míst"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Zaokrouhlit"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Zaokrouhlit dolů"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Zaokrouhlit nahoru"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Znaménko"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Rychlost světla"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299 792 458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Magnetická konstanta"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Permitivita vakua"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,854 187 82×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Gravitační konstanta"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Planckova konstanta"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Elementární náboj"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Klidová hmotnost elektronu"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Klidová hmotnost protonu"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Avogadrova konstanta"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1463,76 +1463,76 @@ msgid "Switch conversion units"
 msgstr "Přepnout převodní jednotky"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Žádná položka v historii změn"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Žádná položka v historii opakování změn"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nesmyslná hodnota pro uložení"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Došlo k přetečení. Zkuste větší velikost slova."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Neznámá proměnná „%s“"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkce „%s“ není definovaná"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Neznámý převod"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Chybný výraz v místě symbolu „%s“"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Nesprávný výraz"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Počítá se"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Pro rozklad na součin prvočísel je zapotřebí celé číslo"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nesmyslná hodnota pro bitový posun"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Zobrazená hodnota není celé číslo"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1584,19 +1584,19 @@ msgid "Show %d decimal _places"
 msgstr "Zobrazovat %d desetinných _míst"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nezdařilo se otevření souboru nápovědy"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Dokumentační tým MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1608,7 +1608,7 @@ msgstr ""
 "Foundation; a to buď verze 2 této licence anebo (podle vlastního uvážení) "
 "kterékoliv pozdější verze."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1620,7 +1620,7 @@ msgstr ""
 "KONKRÉTNÍ ÚČEL. Více podrobností najdete přímo v licenci GNU General Public "
 "License."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1630,7 +1630,7 @@ msgstr ""
 "kalkulačkou; pokud ne, napište na: Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1639,11 +1639,11 @@ msgstr ""
 "Kalkulačka s režimy pro finance a vědu.\n"
 "Využívá GNU MPFR %s a GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "O kalkulačce"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1651,7 +1651,7 @@ msgstr ""
 "Copyright © 1986–2010 autoři GCalctool\n"
 "Copyright © 2011-2021 vývojáři MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Stanislav Brabec <[email protected]>\n"
@@ -1663,84 +1663,84 @@ msgstr ""
 "Petr Kovář <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulátor"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "Reži_m"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Zobrazit"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Nápověda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Základní"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Pokročilá"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finanční"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programátorský"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historie"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Obsah"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopírovat"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "V_ložit"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Zpět"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Zn_ovu"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "Vymazat _historii"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Nastavení"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Ukončit"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "O _aplikaci"
 
@@ -1790,19 +1790,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmus nuly je nedefinovaný"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Nultá odmocnina čísla není definovaná"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Faktoriál je definován pouze pro kladná reálná čísla."
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Zbytek po dělení je definován pouze pro celá čísla"
 
@@ -1810,17 +1810,17 @@ msgstr "Zbytek po dělení je definován pouze pro celá čísla"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Mocnina nuly není definovaná pro záporný exponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Chybová funkce je defunována pouze pro reálná čísla."
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Riemannova funkce zeta je definovaná pouze pro reálná čísla ≠1"
 
diff --git a/po/cy.po b/po/cy.po
index 4795074..f8aa94b 100644
--- a/po/cy.po
+++ b/po/cy.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: ciaran, 2020\n"
 "Language-Team: Welsh (https://www.transifex.com/mate/teams/13566/cy/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Cyfrifiannell"
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1284,7 +1284,7 @@ msgstr[3] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1294,103 +1294,103 @@ msgstr[2] ""
 msgstr[3] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1406,76 +1406,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Dim gwerth synhwyrol i'w storio"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Mynegiad wedi'i gam-ffurfio"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1527,19 +1527,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1547,7 +1547,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1555,115 +1555,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
 "  Cadan ap Tomos https://launchpad.net/~cadz123"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Cyfrifiannell"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "G_olwg"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Cymorth"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Sylfaenol"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Uwch"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Ariannol"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Cynnwys"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copïo"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Gludo"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Dadwneud"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ail-wneud"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Hoffterau"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Gadael"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Ynghylch"
 
@@ -1712,19 +1712,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1732,17 +1732,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/da.po b/po/da.po
index 9800794..30b8402 100644
--- a/po/da.po
+++ b/po/da.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Joe Hansen <[email protected]>, 2021\n"
 "Language-Team: Danish (https://www.transifex.com/mate/teams/13566/da/)\n"
@@ -591,12 +591,12 @@ msgstr ""
 "Hvis du ønsker at vide mere om MATE og MATE Calc, så besøg projektets "
 "hjemmeside."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Mate-lommeregner"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Lommeregner"
 
@@ -963,7 +963,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Fejl: Antallet af perioder skal være positivt"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -974,7 +974,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -991,7 +991,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1013,7 +1013,7 @@ msgstr ""
 "  --g-fatal-warnings              Gør alle advarsler fatale"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1023,13 +1023,13 @@ msgstr ""
 "  -s, --solve <ligning>           Løs den givne ligning"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumentet --solve kræver en ligning, der skal løses"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Ukendt argument »%s«"
@@ -1220,12 +1220,12 @@ msgid "Boolean NOT"
 msgstr "Boolesk IKKE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Heltalsdel"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Decimaldel"
 
@@ -1310,28 +1310,28 @@ msgid "Straight Line Depreciation"
 msgstr "Retlinjet afskrivning"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binær"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1340,7 +1340,7 @@ msgstr[1] "_%d bit"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1348,103 +1348,103 @@ msgstr[0] "%d bit"
 msgstr[1] "%d bit"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Afrund"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Gulv"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Loft"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Fortegn"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Lysets hastighed"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299..792.458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Magnetisk konstant"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Elektrisk konstant"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Newtons gravitationskonstant"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Planckkonstant"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Elementær ladning"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Elektronmasse"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Protonmasse"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Avogadokonstant"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1460,76 +1460,76 @@ msgid "Switch conversion units"
 msgstr "Byt om på konverteringsenheder"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ingen fortrydelseshistorik"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Ingen fortrydelseshistorik"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Ingen gyldig værdi til at lagre"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overløb. Prøv at øge word-størrelsen"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Ukendt variabel »%s«"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funktionen »%s« er ikke defineret"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Ukendt konvertering"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Misdannet udtryk ved symbolet »%s«"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Misdannet udtryk"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Udregner"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Kræver et heltal at faktorisere"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Ingen gyldig værdi til at udføre bitvis-skift"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Den viste værdi er ikke et heltal"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1581,19 +1581,19 @@ msgid "Show %d decimal _places"
 msgstr "Vis %d _decimaler"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Kunne ikke åbne hjælpfil"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE-dokumentationsholdet"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1605,7 +1605,7 @@ msgstr ""
 "Free Software Foundation; enten version 2 af licensen, eller (hvis du ønsker"
 " det) enhver senere version."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1616,7 +1616,7 @@ msgstr ""
 "NOGEN GARANTI, ikke engang underforstået garanti om at det er SALGBART eller"
 " PASSER TIL ET BESTEMT FORMÅL. Se GNU General Public License for detaljer."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1626,7 +1626,7 @@ msgstr ""
 "lommeregner. Hvis du ikke har det, kan du skrive til Free Software "
 "Foundation, Inc. 51 Franklin Street, 5. sal, Boston, MA 02110-1301 USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1635,11 +1635,11 @@ msgstr ""
 "Lommeregner med finansiel og videnskabelig tilstand.\n"
 "Bruger GNU MPFR %s og GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Om MATE-lommeregner"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1647,7 +1647,7 @@ msgstr ""
 "Ophavsret 1986–2010 GCalctool-forfatterne\n"
 "Ophavsret 2011–2021 MATE-udviklerne"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "\"Joe Hansen, 2012, 2013, 2014, 2015, 2016, 2017, 2018.\\n\"\n"
@@ -1656,84 +1656,84 @@ msgstr ""
 "\"Mere info: http://www.dansk-gruppen.dk\""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Lommeregner"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Tilstand"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vis"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hjælp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basalt"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avanceret"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansiel"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historik"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Indhold"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopier"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Indsæt"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Fortryd"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Gendan"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Ryd historik"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Præferencer"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Afslut"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Om"
 
@@ -1782,19 +1782,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmen til nul er ikke defineret"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Zeroth-roden for et tal er ikke defineret"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Fakultet er kun defineret for ikke-negative reelle tal"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulo-division er kun defineret for heltal"
 
@@ -1802,17 +1802,17 @@ msgstr "Modulo-division er kun defineret for heltal"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Potenser af nul er ikke defineret for negative eksponenter"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Fejlfunktionen er kun defineret for reelle tal"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Riemann zeta-funktionen er kun defineret for reelle tal ≠1"
 
diff --git a/po/de.po b/po/de.po
index efe0754..f2cdd92 100644
--- a/po/de.po
+++ b/po/de.po
@@ -20,8 +20,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Winfried Frisch <[email protected]>, 2020\n"
 "Language-Team: German (https://www.transifex.com/mate/teams/13566/de/)\n"
@@ -602,12 +602,12 @@ msgstr ""
 "Arbeitsumgebung. Wenn Sie mehr über MATE und MATE-Calc erfahren möchten, "
 "besuchen Sie bitte die Internetseite des Projektes."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE-Taschenrechner"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Taschenrechner"
 
@@ -977,7 +977,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Fehler: Die Zahl der Perioden muss positiv sein"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -988,7 +988,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -1005,7 +1005,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1025,7 +1025,7 @@ msgstr ""
 "  --g-fatal-warnings              All Warnungen werden zu fatalen"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1035,13 +1035,13 @@ msgstr ""
 "  -s, --solve <Gleichung>          Die gegebene Gleichung lösen"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Das Argument »--solve« erfordert eine zu lösende Gleichung"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Unbekanntes Argument »%s«"
@@ -1232,12 +1232,12 @@ msgid "Boolean NOT"
 msgstr "Boolesches NICHT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Ganzzahliger Anteil"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Gebrochener Anteil"
 
@@ -1322,28 +1322,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineare Abschreibung"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binär"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Dezimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadezimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1352,7 +1352,7 @@ msgstr[1] "_%d Stellen"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1360,103 +1360,103 @@ msgstr[0] "%d Stelle"
 msgstr[1] "%d Stellen"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Runden"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Abrunden"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Aufrunden"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Vorzeichen"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Lichtgeschwindigkeit"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Magnetische Feldkonstante"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Elektrische Feldkonstante"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Newtonsche Gravitationskonstante"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Planck-Konstante"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Elementarladung"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Elektronenmasse"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Protonenmasse"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Avogadro-Konstante"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1472,76 +1472,76 @@ msgid "Switch conversion units"
 msgstr "Umrechnungseinheiten vertauschen"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Keine Rückgängig-Chronik"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Keine Rückgängig-Chronik"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Kein vernünftiger Wert zum Speichern"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Überlauf. Versuchen Sie eine höhere Wortlänge zu verwenden"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Unbekannte Variable »%s«"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Die Funktion »%s« ist nicht definiert"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Unbekannte Umrechnung"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Fehlerhafter Ausdruck bei Token »%s«"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Fehlerhafter Ausdruck"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Berechnung läuft"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Es können nur Ganzzahlen faktorisiert werden"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Kein vernünftiger Wert zum bitweisen Verschieben"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Angezeigter Wert ist keine Ganzzahl"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1593,19 +1593,19 @@ msgid "Show %d decimal _places"
 msgstr "%d _Nachkommastellen anzeigen"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Hilfedatei kann nicht geöffnet werden"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE-Dokumentationsteam"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1613,7 +1613,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1621,31 +1621,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Über MATE-Taschenrechner"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Christian Meyer\n"
@@ -1657,84 +1657,84 @@ msgstr ""
 "Tobias Bannert"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Taschenrechner"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modus"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Darstellung"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hilfe"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basis"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Erweitert"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finanztechnisch"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmierung"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Inhalt"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopieren"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "E_infügen"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Rückgängig"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Wiederherstellen"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Einstellungen"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Beenden"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Über"
 
@@ -1783,19 +1783,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Der Logarithmus von null ist nicht definiert"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulo-Divisionen sind nur für Ganzzahlen definiert"
 
@@ -1803,18 +1803,18 @@ msgstr "Modulo-Divisionen sind nur für Ganzzahlen definiert"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 "Die Potenz von null ist nicht für einen negativen Exponenten definiert"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/dz.po b/po/dz.po
index 1082537..e8b09cf 100644
--- a/po/dz.po
+++ b/po/dz.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Dzongkha (https://www.transifex.com/mate/teams/13566/dz/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "རྩིས་འཕྲུལ།"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1280,110 +1280,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1399,76 +1399,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "འབད་ཤོལ་གྱི་ལོ་རྒྱུས་མིན་ནུག་ "
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "གསོག་འཇོག་འབད་ནིའི་ སེན་བེ་ལུ་མིན་འདུག"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "བཟོ་བསྒྱུར་བའི་གསལ་བརྗོད།"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1520,19 +1520,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1540,7 +1540,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1548,31 +1548,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "ཨའི་ཌི་ཨར་སི་གི་མ་དངུལ་རྒྱབ་སྐྱོར་ཐོག་ལས་ བརྡ་དོན་འཕྲུལ་རིག་ལས་ཁུངས་ནང་ "
@@ -1580,84 +1580,84 @@ msgstr ""
 "<[email protected]>/<[email protected]>(_c)"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "རྩིས་འཕྲུལ། (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "མཐོང་སྣང་།(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "གྲོགས་རམ།(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "གཞི་རྩ། (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "མཐོ་རིམ་ཅན། (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "དངུལ་འབྲེལ། (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "ནང་དོན།(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "འདྲ་བཤུས།(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "སྦྱར།(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "་འབད་བཤོལ།(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "ལོག་འབད།(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "དགའ་གདམ་ཚུ།(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "སྤངས།  (_Q)།"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "སྐོར་ལས།(_A)"
 
@@ -1706,19 +1706,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1726,17 +1726,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/el.po b/po/el.po
index d07555a..0cdca9c 100644
--- a/po/el.po
+++ b/po/el.po
@@ -19,8 +19,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: thunk <[email protected]>, 2020\n"
 "Language-Team: Greek (https://www.transifex.com/mate/teams/13566/el/)\n"
@@ -593,12 +593,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Αριθμομηχανή MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Αριθμομηχανή"
 
@@ -968,7 +968,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Σφάλμα: ο αριθμός των περιόδων πρέπει να είναι θετικός"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -996,7 +996,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1016,7 +1016,7 @@ msgstr ""
 "  --g-fatal-warnings              Να είναι όλες οι προειδοποιήσεις μοιραίες"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1026,13 +1026,13 @@ msgstr ""
 "  -s, --solve <equation>          Επίλυση της δοσμένης εξίσωσης"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Το όρισμα --solve πρέπει να ακολουθείται από μία εξίσωση προς επίλυση"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Άγνωστο όρισμα '%s'"
@@ -1223,12 +1223,12 @@ msgid "Boolean NOT"
 msgstr "Λογικό NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Ακέραιο μέρος"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Κλασματικό μέρος"
 
@@ -1313,28 +1313,28 @@ msgid "Straight Line Depreciation"
 msgstr "Σταθερή απόσβεση"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Δυαδική"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Οκταδική"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Δεκαδική"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Δεκαεξαδική"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1343,7 +1343,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1351,103 +1351,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Στρογγυλοποίηση προς τον πλησιέστερο ακέραιο"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Στρογγυλοποίηση προς τα κάτω"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Στρογγυλοποίηση προς τα πάνω"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Πρόσημο"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1463,76 +1463,76 @@ msgid "Switch conversion units"
 msgstr "Αλλαγή μονάδων μετατροπής"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Δεν υπάρχει ιστορικό αναίρεσης"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Δεν υπάρχει ιστορικό ενεργειών για επνάληψη"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Δε δόθηκε θεμιτή τιμή για αποθήκευση"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Υπερχείλιση. Δοκιμάστε να επιλέξετε μεγαλύτερο μήκος λέξης"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Άγνωστη μεταβλητή '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Η συνάρτηση '%s' δεν έχει οριστεί"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Άγνωστη μετατροπή"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Λανθασμένη διατύπωση έκφρασης στο αναγνωριστικό '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Λανθασμένη διατύπωση έκφρασης"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Υπολογισμός"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Απαιτείται ακέραιος για την παραγοντοποίηση"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Δε δόθηκε θεμιτή τιμή για τη μετατόπιση κατά bit."
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Η εμφανιζόμενη τιμή δεν είναι ακέραια"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1584,19 +1584,19 @@ msgid "Show %d decimal _places"
 msgstr "Εμφάνιση %d δεκαδικών _ψηφίων"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Αδύνατο το άνοιγμα του αρχείου βοήθειας"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Ομάδα τεκμηρίωσης MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1604,7 +1604,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1612,31 +1612,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Ελληνική μεταφραστική ομάδα MATE\n"
@@ -1645,84 +1645,84 @@ msgstr ""
 "Για περισσότερες πληροφορίες, επισκεφθείτε την σελίδα http://www.mate.gr/"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Αριθμομηχανή"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Λειτουργία"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Προβολή"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Βοήθεια"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Βασική"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "Π_ροχωρημένη"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "Ε_μπορική"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Προγραμματιστική"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Περιεχόμενα"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Αντιγραφή"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Επι_κόλληση"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Αναίρεση"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Ε_πανάληψη"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Προτιμήσεις"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Έξοδος"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Πε_ρί"
 
@@ -1771,19 +1771,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Δεν ορίζεται λογάριθμος του μηδενός"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Το υπόλοιπο ορίζεται μόνο για διαίρεση ακέραιων αριθμών"
 
@@ -1791,17 +1791,17 @@ msgstr "Το υπόλοιπο ορίζεται μόνο για διαίρεση
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Δεν ορίζονται δυνάμεις του μηδενός για αρνητικούς εκθέτες"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/en_AU.po b/po/en_AU.po
index f63821b..1d26d0d 100644
--- a/po/en_AU.po
+++ b/po/en_AU.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Michael Findlay <[email protected]>, 2020\n"
 "Language-Team: English (Australia) (https://www.transifex.com/mate/teams/13566/en_AU/)\n"
@@ -581,12 +581,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Calculator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -953,7 +953,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Error: the number of periods must be positive"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -964,7 +964,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -981,7 +981,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1001,7 +1001,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1011,13 +1011,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Unknown argument '%s'"
@@ -1208,12 +1208,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Integer Component"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Fractional Component"
 
@@ -1298,28 +1298,28 @@ msgid "Straight Line Depreciation"
 msgstr "Straight Line Depreciation"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binary"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1328,7 +1328,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1336,103 +1336,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Round"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Floor"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Ceiling"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Sign"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1448,76 +1448,76 @@ msgid "Switch conversion units"
 msgstr "Switch conversion units"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "No undo history"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "No redo history"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "No sane value to store"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overflow. Try a bigger word size"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Unknown variable '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Function '%s' is not defined"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Unknown conversion"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Malformed expression at token '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Malformed expression"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculating"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Need an integer to factorize"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "No sane value to bitwise shift"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Displayed value not an integer"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1569,19 +1569,19 @@ msgid "Show %d decimal _places"
 msgstr "Show %d decimal _places"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Unable to open help file"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1589,7 +1589,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1597,113 +1597,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "translator-credits"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_View"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programming"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contents"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copy"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Paste"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Undo"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Redo"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferences"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Quit"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_About"
 
@@ -1752,19 +1752,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logarithm of zero is undefined"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulus division is only defined for integers"
 
@@ -1772,17 +1772,17 @@ msgstr "Modulus division is only defined for integers"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "The power of zero is undefined for a negative exponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/en_CA.po b/po/en_CA.po
index da948cb..b224e17 100644
--- a/po/en_CA.po
+++ b/po/en_CA.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: English (Canada) (https://www.transifex.com/mate/teams/13566/en_CA/)\n"
@@ -581,12 +581,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -953,7 +953,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Error: the number of periods must be positive"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -964,7 +964,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -981,7 +981,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1001,7 +1001,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1011,13 +1011,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Unknown argument '%s'"
@@ -1208,12 +1208,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Integer Component"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Fractional Component"
 
@@ -1298,28 +1298,28 @@ msgid "Straight Line Depreciation"
 msgstr "Straight Line Depreciation"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binary"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1328,7 +1328,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1336,103 +1336,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Round"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Floor"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Ceiling"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Sign"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1448,76 +1448,76 @@ msgid "Switch conversion units"
 msgstr "Switch conversion units"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "No undo history"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "No redo history"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "No sane value to store"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overflow. Try a bigger word size"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Unknown variable '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Function '%s' is not defined"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Unknown conversion"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Malformed expression"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculating"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Need an integer to factorize"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "No sane value to bitwise shift"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Displayed value not an integer"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1569,19 +1569,19 @@ msgid "Show %d decimal _places"
 msgstr "Show %d decimal _places"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Unable to open help file"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1589,7 +1589,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1597,113 +1597,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Adam Weinberger <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_View"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programming"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contents"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copy"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Paste"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Undo"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Redo"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferences"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Quit"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_About"
 
@@ -1752,19 +1752,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logarithm of zero is undefined"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulus division is only defined for integers"
 
@@ -1772,17 +1772,17 @@ msgstr "Modulus division is only defined for integers"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "The power of zero is undefined for a negative exponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/en_GB.po b/po/en_GB.po
index 863081e..19c560e 100644
--- a/po/en_GB.po
+++ b/po/en_GB.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Andi Chandler <[email protected]>, 2020\n"
 "Language-Team: English (United Kingdom) (https://www.transifex.com/mate/teams/13566/en_GB/)\n"
@@ -583,12 +583,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Calculator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -955,7 +955,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Error: the number of periods must be positive"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -966,7 +966,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -983,7 +983,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1003,7 +1003,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1013,13 +1013,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Unknown argument '%s'"
@@ -1210,12 +1210,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Integer Component"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Fractional Component"
 
@@ -1300,28 +1300,28 @@ msgid "Straight Line Depreciation"
 msgstr "Straight-Line Depreciation"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binary"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1330,7 +1330,7 @@ msgstr[1] "_%d places"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1338,103 +1338,103 @@ msgstr[0] "%d place"
 msgstr[1] "%d places"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Round"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Floor"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Ceiling"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Sign"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1450,76 +1450,76 @@ msgid "Switch conversion units"
 msgstr "Switch conversion units"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "No undo history"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "No redo history"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "No sane value to store"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overflow. Try a bigger word size"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Unknown variable '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Function '%s' is not defined"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Unknown conversion"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Malformed expression at token '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Malformed expression"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculating"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Need an integer to factorise"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "No sane value to bitwise shift"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Displayed value not an integer"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1571,19 +1571,19 @@ msgid "Show %d decimal _places"
 msgstr "Show %d decimal _places"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Unable to open help file"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE Documentation Team"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1591,7 +1591,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1599,113 +1599,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Martin Wimpress"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_View"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programming"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contents"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copy"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Paste"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Undo"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Redo"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferences"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Quit"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_About"
 
@@ -1754,19 +1754,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logarithm of zero is undefined"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulus division is only defined for integers"
 
@@ -1774,17 +1774,17 @@ msgstr "Modulus division is only defined for integers"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "The power of zero is undefined for a negative exponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/eo.po b/po/eo.po
index 000c927..cb5826c 100644
--- a/po/eo.po
+++ b/po/eo.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Esperanto (https://www.transifex.com/mate/teams/13566/eo/)\n"
@@ -585,12 +585,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Kalkulilo"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulilo"
 
@@ -955,7 +955,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Eraro: la kvanto de periodoj devas esti pozitiva"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -966,7 +966,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -983,7 +983,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1003,7 +1003,7 @@ msgstr ""
 "  --g-fatal-warnings              Fari ĉiujn avertojn neripareblaj"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1013,13 +1013,13 @@ msgstr ""
 "  -s, --solve <equation>          Solvi la donitan ekvacion"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumento --solvo bezonas ekvacion por solvi"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Nekonata argumento '%s'"
@@ -1210,12 +1210,12 @@ msgid "Boolean NOT"
 msgstr "Bulea NEGO (NOT)"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Entjera parto"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Frakcia parto"
 
@@ -1300,28 +1300,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineara malplivaloriĝo"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Duuma"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Okuma"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Dekuma"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Deksesuma"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1330,7 +1330,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1338,103 +1338,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Rondigi"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Planka"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Plafona"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signumo"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1450,76 +1450,76 @@ msgid "Switch conversion units"
 msgstr "Ŝanĝi konverto-unuojn"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Neniu malfara historio"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Neniu refara historia"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Neniu 'sana'-valoro por konservi"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Troo. Provu pli grandan vortlongon"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Nekonata variablo '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkcio '%s' ne estas definita"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Nekonata konverto"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Misformita esprimo je signo '1%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Misformita esprimo"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Kalkulanta"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Bezonas entjeron por faktorigi"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Neniu 'sana'-valoro por laŭbita ŝovo"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Montrita valoro ne estas entjero"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1571,19 +1571,19 @@ msgid "Show %d decimal _places"
 msgstr "Montri %d _cifer-pozicioj"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Ne eblas malfermi helpdosieron"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1591,7 +1591,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1599,31 +1599,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Pri MATE Kalkulilo"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Brion VIBBER <[email protected]>\n"
@@ -1636,84 +1636,84 @@ msgstr ""
 "  Rick Miller https://launchpad.net/~rdmiller3"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulilo"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Reĝimo"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vidi"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Helpo"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Baza"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Altnivela"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financa"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programado"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Enhavoj"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopii"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Enmeti"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Malfari"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refari"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Agordoj"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Ĉesi"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Pri"
 
@@ -1762,19 +1762,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmo de nulo ne estas definita"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulo divido nur definita por entjeroj"
 
@@ -1782,17 +1782,17 @@ msgstr "Modulo divido nur definita por entjeroj"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La potenco de nulo nedifinita por negativa eksponento"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/es.po b/po/es.po
index 89ad1db..fca7ecf 100644
--- a/po/es.po
+++ b/po/es.po
@@ -12,14 +12,14 @@
 # Wolfgang Ulbrich <[email protected]>, 2019
 # Joel Barrios <[email protected]>, 2019
 # Stefano Karapetsas <[email protected]>, 2019
-# Adolfo Jayme-Barrientos, 2020
+# Adolfo Jayme Barrientos, 2020
 # Toni Estévez <[email protected]>, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Toni Estévez <[email protected]>, 2021\n"
 "Language-Team: Spanish (https://www.transifex.com/mate/teams/13566/es/)\n"
@@ -597,12 +597,12 @@ msgstr ""
 " del entorno de escritorio MATE. Si quiere saber más sobre MATE y "
 "Calculadora de MATE, visite la página principal del proyecto."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora de MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -969,7 +969,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Error: el número de períodos debe ser positivo"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -980,7 +980,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -997,7 +997,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1017,7 +1017,7 @@ msgstr ""
 "  --g-fatal-warnings              Hacer que todos los avisos sean fatales"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1027,13 +1027,13 @@ msgstr ""
 "  -s, --solve <ecuación>          Resolver la ecuación proporcionada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Parámetro --resolver requiere una ecuación para resolver"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Parámetro «%s» desconocido"
@@ -1224,12 +1224,12 @@ msgid "Boolean NOT"
 msgstr "NO lógico"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Parte entera"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Parte fraccional"
 
@@ -1314,28 +1314,28 @@ msgid "Straight Line Depreciation"
 msgstr "Deprecación lineal"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binario"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1344,7 +1344,7 @@ msgstr[1] "_%d posiciones"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1352,103 +1352,103 @@ msgstr[0] "%d lugar"
 msgstr[1] "%d posiciones"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Redondear"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Piso"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Techo"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signo"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Velocidad de la luz"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299.792.458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Constante magnética"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Permisividad del vacío"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Constante de la gravitación de Newton"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Constante de Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Carga elemental"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Masa del electrón"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Masa del protón"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Número de Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1464,76 +1464,76 @@ msgid "Switch conversion units"
 msgstr "Cambiar unidades de conversión"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "No hay historial de deshacer"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "No hay historial de rehacer"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "No hay un valor bueno para almacenar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Desbordamiento de búfer. Inténtelo con un tamaño de palabra mayor."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variable «%s» desconocida"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La función «%s» no está definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversión desconocida"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Expresión mal formada en el valor «%s»"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expresión malformada"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculando"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Se necesita un entero para factorizar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "No hay un valor bueno para un desplazamiento de bits"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "El valor mostrado no es un entero"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1585,19 +1585,19 @@ msgid "Show %d decimal _places"
 msgstr "Mostrar %d deci_males"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "No se puede abrir el archivo de ayuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Equipo de Documentación de MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1609,7 +1609,7 @@ msgstr ""
 "Free Software Foundation, ya sea la versión 2 de la Licencia como (a su "
 "elección) cualquier versión posterior."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1621,7 +1621,7 @@ msgstr ""
 "IDONEIDAD PARA UN PROPÓSITO PARTICULAR. Consulte la Licencia Pública General"
 " de GNU para obtener más detalles."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1631,7 +1631,7 @@ msgstr ""
 "Calculadora de MATE; si no es así, escriba a la Free Software Foundation, "
 "Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1640,11 +1640,11 @@ msgstr ""
 "Calculadora con modos científico y financiero.\n"
 "Usa GNU MPFR %s y GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Acerca de Calculadora de MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1652,7 +1652,7 @@ msgstr ""
 "Copyright © 1986–2011 Los autores de GCalctool\n"
 "Copyright © 2011-2020 Los desarrolladores de MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Toni Estevez <[email protected]>, 2019\n"
@@ -1661,84 +1661,84 @@ msgstr ""
 "Pablo Gonzalo del Campo <[email protected]>, 2002-2003"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modo"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ver"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Básico"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avanzado"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financiero"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programador"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historial"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contenido"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Pegar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Deshacer"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Rehacer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Borrar el historial"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Salir"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1787,19 +1787,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "El logaritmo de cero no está definido"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "La raíz cero de un número no está definida"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "El factorial solo se define para los números reales no negativos"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "La división modular solo está definida para enteros"
 
@@ -1807,17 +1807,17 @@ msgstr "La división modular solo está definida para enteros"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La potencia de cero no está definida para un exponente negativo"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "La función de error sólo está definida para los números reales"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "La función zeta de Riemann solo está definida para números reales ≠1"
 
diff --git a/po/es_AR.po b/po/es_AR.po
index 2c18d8d..a6b3e46 100644
--- a/po/es_AR.po
+++ b/po/es_AR.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: mbarbero <[email protected]>, 2018\n"
 "Language-Team: Spanish (Argentina) (https://www.transifex.com/mate/teams/13566/es_AR/)\n"
@@ -560,12 +560,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -930,7 +930,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -939,7 +939,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -951,7 +951,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -964,7 +964,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -972,13 +972,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1169,12 +1169,12 @@ msgid "Boolean NOT"
 msgstr "NO Booleano"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Componente Entero"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Componente Fraccional"
 
@@ -1259,28 +1259,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depreciación por Método de la Línea Recta"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binario"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1289,7 +1289,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1297,103 +1297,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Redondear"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Redonder hacia abajo"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Redondear hacia arriba"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signo"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1409,76 +1409,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variable desconocida '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La función '%s' no está definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1530,19 +1530,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1550,7 +1550,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1558,115 +1558,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Francisco Javier F. Serrador <[email protected]>\n"
 "Jorge González González <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1715,19 +1715,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1735,17 +1735,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/es_CL.po b/po/es_CL.po
index 90547db..a8e77bd 100644
--- a/po/es_CL.po
+++ b/po/es_CL.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Robert Petitpas <[email protected]>, 2019\n"
 "Language-Team: Spanish (Chile) (https://www.transifex.com/mate/teams/13566/es_CL/)\n"
@@ -556,12 +556,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -926,7 +926,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -935,7 +935,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -947,7 +947,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -960,7 +960,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -968,13 +968,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1165,12 +1165,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1255,28 +1255,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1285,7 +1285,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1293,103 +1293,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1405,76 +1405,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1526,19 +1526,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Equipo de documentiación de MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1546,7 +1546,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1554,113 +1554,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Créditos de los traductores"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/es_CO.po b/po/es_CO.po
index 01fea2b..af385f9 100644
--- a/po/es_CO.po
+++ b/po/es_CO.po
@@ -14,8 +14,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Julio E Tamara P <[email protected]>, 2020\n"
 "Language-Team: Spanish (Colombia) (https://www.transifex.com/mate/teams/13566/es_CO/)\n"
@@ -557,12 +557,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -927,7 +927,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -936,7 +936,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -948,7 +948,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -961,7 +961,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -969,13 +969,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1166,12 +1166,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1256,28 +1256,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binario"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1286,7 +1286,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1294,103 +1294,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1406,76 +1406,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1527,19 +1527,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1547,7 +1547,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1555,113 +1555,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Julián Andrés Borrero<[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ver"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ayuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Índ_ice"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Deshacer"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Rehacer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Salir"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1710,19 +1710,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1730,17 +1730,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/es_ES.po b/po/es_ES.po
index c2a27de..6dd1051 100644
--- a/po/es_ES.po
+++ b/po/es_ES.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Spanish (Spain) (https://www.transifex.com/mate/teams/13566/es_ES/)\n"
@@ -554,12 +554,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -924,7 +924,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -933,7 +933,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -945,7 +945,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -958,7 +958,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -966,13 +966,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1163,12 +1163,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1253,28 +1253,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1283,7 +1283,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1291,103 +1291,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1403,76 +1403,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1524,19 +1524,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1544,7 +1544,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1552,115 +1552,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Jorge González <[email protected]>\n"
 "Francisco Javier F. Serrador <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Prefere_ncias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Acerca _de"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/es_MX.po b/po/es_MX.po
index f41e4e1..3b272f3 100644
--- a/po/es_MX.po
+++ b/po/es_MX.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Luis Medina <[email protected]>, 2020\n"
 "Language-Team: Spanish (Mexico) (https://www.transifex.com/mate/teams/13566/es_MX/)\n"
@@ -555,12 +555,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -925,7 +925,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -934,7 +934,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -946,7 +946,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -959,7 +959,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -967,13 +967,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1164,12 +1164,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1254,28 +1254,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1284,7 +1284,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1292,103 +1292,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1404,76 +1404,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1525,19 +1525,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1545,7 +1545,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1553,31 +1553,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Luis Armando Medina A. <[email protected]>, 2016\n"
@@ -1589,84 +1589,84 @@ msgstr ""
 "Jorge Carrasquilla Soares <[email protected]>, 2000"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ver"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Índice"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "Salir"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1715,19 +1715,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1735,17 +1735,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/es_PR.po b/po/es_PR.po
index ac2ba48..1e0fc6d 100644
--- a/po/es_PR.po
+++ b/po/es_PR.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Neverest <[email protected]>, 2018\n"
 "Language-Team: Spanish (Puerto Rico) (https://www.transifex.com/mate/teams/13566/es_PR/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,115 +1551,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Francisco Javier F. Serrador <[email protected]>\n"
 "Jorge González González <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ayuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1708,19 +1708,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1728,17 +1728,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/et.po b/po/et.po
index 212a992..74a08f3 100644
--- a/po/et.po
+++ b/po/et.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Estonian (https://www.transifex.com/mate/teams/13566/et/)\n"
@@ -580,12 +580,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE kalkulaator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulaator"
 
@@ -951,7 +951,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Viga: perioodide arv peab olema positiivne"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -962,7 +962,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 "  --g-fatal-warnings        Kõikide hoiatuste muutmine fataalseks"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1009,13 +1009,13 @@ msgstr ""
 "  -s, --solve <equation>    Etteantud võrrandi lahendamine"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Võtimele --solve on vaja argumendiks võrrandit, mida lahendada"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Tundmatu argument '%s'"
@@ -1206,12 +1206,12 @@ msgid "Boolean NOT"
 msgstr "Loogiline EI"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Täisosa"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Murdosa"
 
@@ -1296,28 +1296,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineaarne amortisatsioon"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Kahendsüsteem"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Kaheksandsüsteem"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Kümnendsüsteem"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Kuueteistkümnendsüsteem"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1326,7 +1326,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1334,103 +1334,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Ümardamine"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Alla ümardamine"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Üles ümardamine"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Märk"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1446,76 +1446,76 @@ msgid "Switch conversion units"
 msgstr "Teisendusühikute vahetamine"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Tühistamiste ajalugu puudub"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Taastamiste ajalugu puudub"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Salvestamiseks pole mõistlikku väärtust"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Ületäitumine. Proovi suurendada sõna suurust"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Tundmatu muutuja '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funktsioon '%s' on defineerimata"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Tundmatu teisendus"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Vigane avaldis '%s' juures"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Vigane avaldis"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Arvutamine"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Tegurdamiseks on vaja täisarvu"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Bitinihke tegemiseks pole mõistlikku väärtust"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Kuvatav väärtus ei ole täisarv"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1567,19 +1567,19 @@ msgid "Show %d decimal _places"
 msgstr "Näidatakse %d _kümnendkohta"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Abiteabe faili pole võimalik avada"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE dokumenteerimise meeskond"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1587,7 +1587,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1595,31 +1595,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Lauris Kaplinski, 1999.\n"
@@ -1629,84 +1629,84 @@ msgstr ""
 "Ivar Smolin <okul linux ee>, 2005–2010, 2014–2015, 2018."
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulaator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Režiim"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vaade"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "A_bi"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Tavaline"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Laiendatud"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Rahandus"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmeerimine"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Sisukord"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopeeri"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Aseta"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Unusta"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Taasta"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Eelistused"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Lõpeta"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Lähemalt"
 
@@ -1756,19 +1756,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Nullil puudub logaritm"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Jäägiga jagamist saab kasutada ainult täisarvude puhul"
 
@@ -1776,17 +1776,17 @@ msgstr "Jäägiga jagamist saab kasutada ainult täisarvude puhul"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Nulli pole võimalik negatiivsesse astmesse võtta"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/eu.po b/po/eu.po
index acdf28d..b08ef81 100644
--- a/po/eu.po
+++ b/po/eu.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Basque (https://www.transifex.com/mate/teams/13566/eu/)\n"
@@ -584,12 +584,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE kalkulagailua"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulagailua"
 
@@ -958,7 +958,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Errorea: denboraldien kopurua positiboa izan behar du"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -969,7 +969,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -986,7 +986,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1006,7 +1006,7 @@ msgstr ""
 "  --g-fatal-warnings              Egin abisu guztiak ezinbesteko"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1016,13 +1016,13 @@ msgstr ""
 "  -s, --solve <ekuazioa>          Ebatzi ekuazioa"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "--solve argumentuak ebazteko ekuazio bat behar du"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argumentu ezezaguna: '%s'"
@@ -1213,12 +1213,12 @@ msgid "Boolean NOT"
 msgstr "NOT boolearra"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Osoko zatia"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Zati frakzionala"
 
@@ -1303,28 +1303,28 @@ msgid "Straight Line Depreciation"
 msgstr "Amortizazio lineala"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Bitarra"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Zortzitarra"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Hamartarra"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hamaseitarra"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1333,7 +1333,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1341,103 +1341,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Biribildu"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Biribildu beheko osokora"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Biribildu goiko osokora"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Zeinua"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1453,76 +1453,76 @@ msgid "Switch conversion units"
 msgstr "Trukatu bihurketako unitateak"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ez dago desegiteko historiarik"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Ez dago desegiteko historiarik"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Ez dago zentzuzko baliorik biltegiratzeko"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Gainezkatzea. Saiatu hitz-tamaina handiago batekin"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Aldagai ezezaguna: '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' funtzioa ez dago definituta"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Bihurketa ezezaguna"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Hondatutako adierazpena"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Kalkulatzen"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Osoko zenbaki bat behar da faktorizatzeko"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Ez dago zentzuzko baliorik bit mailan desplazatzeko"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Bistaratutako balioa ez da osoko bat"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1574,19 +1574,19 @@ msgid "Show %d decimal _places"
 msgstr "Erakutsi dezimalen %d _posizio"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Ezin da Laguntza-fitxategia ireki"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Mate dokumentatzeko taldea"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1594,7 +1594,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1602,115 +1602,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Asier Iturralde Sarasola <[email protected]>\n"
 "Aritz Jorge Sánchez"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulagailua"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modua"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ikusi"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Laguntza"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Oinarrizkoa"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Aurreratua"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finantzarioa"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programazioa"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Edukia"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiatu"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Itsatsi"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Desegin"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Berregin"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Hobespenak"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Irten"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Honi _buruz"
 
@@ -1759,19 +1759,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Zeroren logaritmoa ez dago definituta"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulu-zatiketa osoko zenbakientzat bakarrik dago definituta"
 
@@ -1779,17 +1779,17 @@ msgstr "Modulu-zatiketa osoko zenbakientzat bakarrik dago definituta"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Zeroren berretura ez dago definituta berretzaile negatibo batentzat"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/fa.po b/po/fa.po
index 70cbb37..c9631ba 100644
--- a/po/fa.po
+++ b/po/fa.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Persian (https://www.transifex.com/mate/teams/13566/fa/)\n"
@@ -556,12 +556,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "ماشین حساب MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ماشین‌حساب"
 
@@ -928,7 +928,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "خطا: تعداد دوره‌ها باید مثبت باشند"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -939,7 +939,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -956,7 +956,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -976,7 +976,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -986,13 +986,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "آرگومان ناشناس «%s»"
@@ -1183,12 +1183,12 @@ msgid "Boolean NOT"
 msgstr "مقدار بولی NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "جزء صحیح"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "جزء کسری"
 
@@ -1273,28 +1273,28 @@ msgid "Straight Line Depreciation"
 msgstr "استهلاک خط مستقیم"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "دودویی"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "هشت‌هشتی"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "اعشاری"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "شانزده‌شانزدهی‏"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1303,7 +1303,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1311,103 +1311,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "گرد کردن"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "کف"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "سقف"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Sign"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1423,76 +1423,76 @@ msgid "Switch conversion units"
 msgstr "تعویض واحدهای تبدیل"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "بدون تاریخچه برگردان"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "بدون تاریخچه انجام دوباره"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "مقدار معقولی برای ذخیره کردن موجود نیست"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "اضافی. یک کلمه با اندازه بزرگتر امتحان کنید"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "متغیر ناشناس «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "تابع «%s» تعریف نشد است"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "تبدیل ناشناس"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "عبارت بدریخت در نشانه '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "عبارت معیوب"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "درحال محاسبه"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "یک عدد صحیح جهت فاکتور کردن لازم است"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "مقدار معقولی برای تبدیل عملگر بیای نیست"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "عبارت نمایش داده شده عدد صحیح نیست"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "۰,۱,۲,۳,۴,۵,۶,۷,۸,۹,A,B,C,D,E,F"
 
@@ -1544,19 +1544,19 @@ msgid "Show %d decimal _places"
 msgstr "نمایش %Id رقم _اعشاری"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "نمی‌توان پرونده‌ی راهنما را باز کرد"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1564,7 +1564,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1572,113 +1572,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "محمدرضا حاجیانپور <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_ماشین‌حساب"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_حالت"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_نمایش"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_راهنما"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "ا_بتدایی"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_پیشرفته"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_مالی"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_برنامه‌نویسی"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_محتویات"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_نسخه‌برداری"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "چسباندن"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "ب_رگردان"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_دوباره"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_ترجیحات"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_ترک"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_درباره"
 
@@ -1727,19 +1727,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "لوگاریتم صفر تعریف نشده است"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "باقیمانده تقسیم تنها برای اعداد صحیح تعریف شده است"
 
@@ -1747,17 +1747,17 @@ msgstr "باقیمانده تقسیم تنها برای اعداد صحیح تع
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "توان صفر برای برای توان‌های منفی تعریف نشده است"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/fi.po b/po/fi.po
index b3b5c3a..aee6bea 100644
--- a/po/fi.po
+++ b/po/fi.po
@@ -10,17 +10,17 @@
 # nomen omen, 2018
 # Wolfgang Ulbrich <[email protected]>, 2019
 # Kimmo Kujansuu <[email protected]>, 2019
-# Ammuu5, 2020
 # Stefano Karapetsas <[email protected]>, 2020
 # Eslam Ali <[email protected]>, 2020
+# Ammuu5, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Eslam Ali <[email protected]>, 2020\n"
+"Last-Translator: Ammuu5, 2021\n"
 "Language-Team: Finnish (https://www.transifex.com/mate/teams/13566/fi/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -586,12 +586,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Laskin"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Laskin"
 
@@ -956,7 +956,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -967,7 +967,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -984,7 +984,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1004,7 +1004,7 @@ msgstr ""
 "  --g-fatal-warnings              Tee kaikista varoituksista kuolettavia"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1012,13 +1012,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumentti --solve vaatii ratkaistavan yhtälön"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Tuntematon argumentti ”%s”"
@@ -1209,12 +1209,12 @@ msgid "Boolean NOT"
 msgstr "Totuusarvo EI"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1299,28 +1299,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binääri"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktaali"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desimaali"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadesimaali"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1329,7 +1329,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1337,103 +1337,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
-msgstr ""
+msgstr "Avogadron vakio"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1449,76 +1449,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ei perumishistoriaa"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Ei kelpoa arvoa tallennettavaksi"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Ylivuoto. Kokeile suurempaa sanakokoa"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Tuntematon muuttuja '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funktiota '%s' ei ole määritelty"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Tuntematon muunnos"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Virheellinen lauseke"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Tekijöihin jakamiseen vaaditaan kokonaisluku"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Ei järkevää arvoa bittisiirrolle"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1570,19 +1570,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ohjetiedostoa ei voi avata"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE-dokumentointitiimi"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1590,7 +1590,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1598,31 +1598,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Tommi Vainikainen, 2005\n"
@@ -1632,84 +1632,84 @@ msgstr ""
 "Johanna Makkonen, 2003"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Laskin"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Tila"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Näytä"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ohje"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Perustila"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Edistynyt"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Taloustila"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Ohjelmointi"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Sisältö"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopioi"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "L_iitä"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Kumoa"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Tee _uudelleen"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Asetukset"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Lopeta"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Tietoja"
 
@@ -1758,19 +1758,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Nollan logaritmia ei ole määritelty"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulusjakolasku on määritelty vain kokonaisluvuille"
 
@@ -1778,17 +1778,17 @@ msgstr "Modulusjakolasku on määritelty vain kokonaisluvuille"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Nollan potensseja ei ole määritelty negatiivisilla eksponenteilla"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/fr.po b/po/fr.po
index 767b0c5..6431059 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -14,15 +14,15 @@
 # roxfr <[email protected]>, 2019
 # clefebvre <[email protected]>, 2020
 # Laurent Napias, 2020
-# Tubuntu, 2020
+# Tubuntu, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Tubuntu, 2020\n"
+"Last-Translator: Tubuntu, 2021\n"
 "Language-Team: French (https://www.transifex.com/mate/teams/13566/fr/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -597,12 +597,12 @@ msgstr ""
 "bureau MATE. Si vous désirez en savoir plus au sujet de MATE et de la "
 "calculatrice MATE, veuillez visiter la page d'accueil du projet."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculatrice de MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculatrice"
 
@@ -971,7 +971,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Erreur : le nombre d'échéances doit être positif"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -982,7 +982,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1019,7 +1019,7 @@ msgstr ""
 "  --g-fatal-warnings              Rendre tous les avertissements fatals"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1029,13 +1029,13 @@ msgstr ""
 "  -s, --solve <équation>          Résout l'équation donnée"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "L'option --solve requiert une équation à résoudre"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Option « %s » inconnue"
@@ -1226,12 +1226,12 @@ msgid "Boolean NOT"
 msgstr "NOT (NON) booléen"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Partie entière"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Partie fractionnaire"
 
@@ -1316,28 +1316,28 @@ msgid "Straight Line Depreciation"
 msgstr "Amortissement linéaire"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binaire"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1346,7 +1346,7 @@ msgstr[1] "_%d positions"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1354,103 +1354,103 @@ msgstr[0] "%d position"
 msgstr[1] "%d positions"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arrondi"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Arrondi à l'entier inférieur"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Arrondi à l'entier supérieur"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signe"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Vitesse de la lumière"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Constante magnétique"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Constante électrique"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Constante de gravitation newtonienne"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Constante de Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Charge élémentaire"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Masse de l'électron"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Masse du proton"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Constante d'Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1466,76 +1466,76 @@ msgid "Switch conversion units"
 msgstr "Inverse les unités de conversion"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Aucun historique d'annulation"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Aucun historique à rétablir"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Aucune valeur correcte à mémoriser"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Dépassement de capacité. Essayez avec une taille de mot plus grande"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variable « %s » inconnue"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La fonction « %s » n'est pas définie"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversion inconnue"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Expression incorrecte avec le jeton « %s »"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expression incorrecte"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calcul en cours"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Seuls les nombres entiers sont factorisables"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Aucune valeur correcte pour un décalage bit-à-bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "La valeur affichée n'est pas un entier"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1587,19 +1587,19 @@ msgid "Show %d decimal _places"
 msgstr "Afficher %d dé_cimales"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Impossible d'ouvrir le fichier d'aide"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Équipe de documentation MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1611,7 +1611,7 @@ msgstr ""
 "publiée par la Free Software Foundation ; version 2 de la licence, ou (à "
 "votre discrétion) toute version ultérieure."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1623,7 +1623,7 @@ msgstr ""
 "ou D'ADÉQUATION À UN BESOIN PARTICULIER. Consultez la Licence Publique "
 "Générale GNU pour plus de détails."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1634,7 +1634,7 @@ msgstr ""
 "Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA "
 "02110-1301, USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1643,17 +1643,19 @@ msgstr ""
 "Calculatrice avec des modes financiers et scientifiques.\n"
 "Utilisant GNU MPFR %s et GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "À propos de Calculatrice de MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
+"Copyright © 1986–2010 Auteurs de GCalctool\n"
+"Copyright © 2011-2021 Développeurs de MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Contributeurs au projet MATE :\n"
@@ -1672,84 +1674,84 @@ msgstr ""
 "Gérard Baylard <gerard dot b at bbox dot fr>, 2010"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculatrice"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Affichage"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Aid_e"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basique"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avancé"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financier"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmation"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historique"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Sommaire"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copier"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "C_oller"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "A_nnuler"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Restaurer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Effacer l'historique"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Préférences"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Quitter"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_À propos"
 
@@ -1799,19 +1801,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Le logarithme de zéro n'est pas défini"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "La racine zéro d’un nombre n’est pas définie"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "La factorielle n’est définie que pour les réels positifs"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Le modulo de la division n'est défini que sur des entiers"
 
@@ -1819,17 +1821,17 @@ msgstr "Le modulo de la division n'est défini que sur des entiers"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La puissance de zéro n'est pas définie pour des exposants négatifs"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "La fonction d'erreur n'est définie que pour les nombres réels"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 "La fonction zeta de Riemann n'est définie que pour les nombres réels ≠1"
diff --git a/po/frp.po b/po/frp.po
index c282d64..111b950 100644
--- a/po/frp.po
+++ b/po/frp.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Alexandre Raymond, 2018\n"
 "Language-Team: Franco-Provençal (Arpitan) (https://www.transifex.com/mate/teams/13566/frp/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Èquipa de traduction"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr ""
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Dèfâre"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refâre"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Prèfèrences"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr ""
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/fur.po b/po/fur.po
index 4630a36..2e30057 100644
--- a/po/fur.po
+++ b/po/fur.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Friulian (https://www.transifex.com/mate/teams/13566/fur/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Andrea Decorte <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Viodude"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Jutori"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Somari"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Cupie"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Tache"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Anule"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ripet"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencis"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Jes"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Informazions"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/fy.po b/po/fy.po
index 20d2954..b784d74 100644
--- a/po/fy.po
+++ b/po/fy.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Western Frisian (https://www.transifex.com/mate/teams/13566/fy/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,31 +1551,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
@@ -1583,84 +1583,84 @@ msgstr ""
 "  Sense Hofstede https://launchpad.net/~qense"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Sjen litte"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Ynhâld"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Ûngedien meitsje"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Foarkarren"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Oer"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ga.po b/po/ga.po
index 62e6fcf..37aa396 100644
--- a/po/ga.po
+++ b/po/ga.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Irish (https://www.transifex.com/mate/teams/13566/ga/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Áireamhán"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heicsidheachúlach"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1284,7 +1284,7 @@ msgstr[4] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1295,103 +1295,103 @@ msgstr[3] ""
 msgstr[4] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1407,76 +1407,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1528,19 +1528,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Ní féidir comhad cabhrach a oscailt"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1548,7 +1548,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1556,31 +1556,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Paul Duffy <[email protected]>\n"
@@ -1588,84 +1588,84 @@ msgstr ""
 "Seán de Búrca <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "Á_ireamhán"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Amharc"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Cab_hair"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Bunúsach"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Casta"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Airgeadúil"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Ríomhchlárú"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Inneachar"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Cóipeáil"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "G_reamaigh"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Cealaigh"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Athfheidhmigh"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Sainroghanna"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "Scoi_r"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Maidir Leis Seo"
 
@@ -1714,19 +1714,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1734,17 +1734,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/gl.po b/po/gl.po
index e426898..3d7fc49 100644
--- a/po/gl.po
+++ b/po/gl.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Miguel Anxo Bouzada <[email protected]>, 2021\n"
 "Language-Team: Galician (https://www.transifex.com/mate/teams/13566/gl/)\n"
@@ -591,12 +591,12 @@ msgstr ""
 "do contorno de escritorio MATE. Se quere saber máis sobre MATE e a "
 "Calculadora do MATE, visite a páxina do proxecto."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -963,7 +963,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Erro: o número de períodos debe ser positivo"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -974,7 +974,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -991,7 +991,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1011,7 +1011,7 @@ msgstr ""
 "  --g-fatal-warnings              Fai que todos os avisos sexan fatais"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1021,13 +1021,13 @@ msgstr ""
 "  -s, --solve <equation>          Resolve a ecuación dada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "O argumento --solve require unha ecuación para resolver"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argumento «%s» descoñecido"
@@ -1218,12 +1218,12 @@ msgid "Boolean NOT"
 msgstr "Booleano NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Compoñente enteiro"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Compoñente fraccionario"
 
@@ -1308,28 +1308,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depreciación lineal directa"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binario"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1338,7 +1338,7 @@ msgstr[1] "_%d posicións"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1346,103 +1346,103 @@ msgstr[0] "%d posición"
 msgstr[1] "%d posicións"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Redondear"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Redondear cara a abaixo"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Redondear cara a arriba"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signo"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "velocidade da luz"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Constante magnética"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Constante eléctrica"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Constante newtoniana de gravitación"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Constante de Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Carga elemental"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Masa do electrón"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Masa do protón"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Constante de Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1458,76 +1458,76 @@ msgid "Switch conversion units"
 msgstr "Cambiar unidades de conversión"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Non hai historial de desfacer"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Non hai historial de refacer"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Non hai un valor lóxico para almacenar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Desbordamento de búfer. Probe cun tamaño maior da palabra"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variábel descoñecida «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "A función «%s» non está definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversión descoñecida"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Expresión formada incorrectamente no token «%s»"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expresión formada incorrectamente"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculando"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Necesítase un enteiro para factorizar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Non hai un valor lóxico para o desprazamento de bit a bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "O valor amosado non é un enteiro "
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1579,19 +1579,19 @@ msgid "Show %d decimal _places"
 msgstr "Amosar %d _posicións decimais"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Non é posíbel abrir o ficheiro de axuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr " Equipo de documentación do MATE "
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1603,7 +1603,7 @@ msgstr ""
 "pola Free Software Foundation tanto na versión 2 da licenza como (baixo a "
 "súa elección) calquera versión posterior."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1615,7 +1615,7 @@ msgstr ""
 "IDONEIDADE PARA UN PROPÓSITO PARTICULAR. Para máis detalles vexa a Licenza "
 "Pública Xeral de GNU."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1625,7 +1625,7 @@ msgstr ""
 "MATE, se non é así, escriba á Free Software Foundation, Inc., 51 Franklin "
 "Street, Fifth Floor, Boston, MA 02110-1301 USA"
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1634,11 +1634,11 @@ msgstr ""
 "Calculadora con modo financeiro e científico.\n"
 "Usando GNU MPFR %s e GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Sobre a Calculadora do MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1646,91 +1646,91 @@ msgstr ""
 "Dereitos de autoría © 1986–2010 Os autores do GCalctool\n"
 "Dereitos de autoría © 2011-2021 Os desenvolvedores do MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Miguel Anxo Bouzada <[email protected]>\n"
 "Proxecto Trasno <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modo"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ver"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Axuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Básico"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avanzado"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financeiro"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programación"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historial"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contidos"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Pegar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Desfacer"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refacer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Limpar o historial"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Saír"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Sobre"
 
@@ -1779,19 +1779,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "O logaritmo de cero non está definido"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "A raíz cero dun número non está definida"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "O factorial só está definido para os número reais non negativos"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "A división de módulo só está definida para enteiros"
 
@@ -1799,17 +1799,17 @@ msgstr "A división de módulo só está definida para enteiros"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "A potencia de cero non está definida para un expoñente negativo"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "A función de erro só se define para números reais"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "A función zeta de Riemann só se define para números reais ≠ 1"
 
diff --git a/po/gu.po b/po/gu.po
index 5140d73..b0e336d 100644
--- a/po/gu.po
+++ b/po/gu.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Gujarati (https://www.transifex.com/mate/teams/13566/gu/)\n"
@@ -577,12 +577,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "મેટ કૅલ્ક્યુલેટર"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "કૅલ્ક્યુલેટર"
 
@@ -949,7 +949,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "ભૂલ: સમયગાળાની સંખ્ય એ હકારાત્મક હોવી જ જોઇએ"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -960,7 +960,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -977,7 +977,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -997,7 +997,7 @@ msgstr ""
 "  --g-fatal-warnings              બધી ચેતવણીઓ ફેટલ બનાવો"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1007,13 +1007,13 @@ msgstr ""
 "  -s, --solve <equation>          આપેલ સમીકરણને ઉકેલો"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "દલીલ --solve એ સમીકરણને ઉકેલવા માટે જરૂર છે"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "અજ્ઞાત દલીલ '%s'"
@@ -1204,12 +1204,12 @@ msgid "Boolean NOT"
 msgstr "બુલિયન NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "પૂર્ણાંક ભાગ"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "અપૂર્ણાંક ભાગ"
 
@@ -1294,28 +1294,28 @@ msgid "Straight Line Depreciation"
 msgstr "સીધી રેખામાં ઉતરતુ"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "બાઇનરી"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "અષ્ટાંકી"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "દશાંશ"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "હેક્ઝાડેસિમલ"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1324,7 +1324,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1332,103 +1332,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ગોળ"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "માળ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "છત"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "હસ્તાક્ષર"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1444,76 +1444,76 @@ msgid "Switch conversion units"
 msgstr "પરિવર્તન એકમોને બદલો"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "કોઈ રદ કરવાનો ઈતિહાસ નથી"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "કોઈ રદ કરવાનો ઈતિહાસ નથી"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "સંગ્રહવા માટે કોઈ કિંમત નથી"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ઊભરાયુ. મોટામાં મોટા શબ્દ માપનો પ્રયત્ન કરો"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "અજ્ઞાત ચલ '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "વિધેય '%s' વ્યાખ્યાયિત થયેલ નથી"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "અજ્ઞાત પરિવર્તન"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "ટોકન '%s' પર મેલફોર્મ થયેલ એક્સપ્રેશન"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "વિચિત્ર સમીકરણ"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "ગણતરી"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "એક પૂર્ણાંક અવયવ જરૂર છે"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "bitwise shift કરવલા માટે કોઈ sane કિંમત નથી"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "દર્શાવેલ કિંમત પૂર્ણાંક નથી"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1565,19 +1565,19 @@ msgid "Show %d decimal _places"
 msgstr "%d દશાંશ સ્થળોને બતાવો (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "મદદ ફાઇલને ખોલવામાં અસમર્થ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1585,7 +1585,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1593,113 +1593,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "અનુવાદક સન્માન"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "કૅલ્ક્યુલેટર (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "જુઓ (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "મદદ (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "આધારભૂત (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "અદ્યતન (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "આર્થિક (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "પ્રોગ્રામીંગ (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "સમાવિષ્ટો (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "નકલ કરો (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ચોંટાડો (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "છેલ્લી પ્રક્રિયાને રદ કરો (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "ફરીથી કરો (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "પસંદગીઓ (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "બહાર નીકળો (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "વિશે (_A)"
 
@@ -1748,19 +1748,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "શૂન્યનું લોગૅરિધમ વ્યાખ્યાયિત થયેલ નથી"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "મોડ્યુલ વિભાગ ફક્ત પૂર્ણાંકો માટે વ્યાખ્યાયિત થયેલ છે"
 
@@ -1768,17 +1768,17 @@ msgstr "મોડ્યુલ વિભાગ ફક્ત પૂર્ણાં
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "શૂન્યનો પાવર નકારાત્મક પુરસ્કર્તા માટે વ્યાખ્યાયિત થયેલ નથી"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/he.po b/po/he.po
index d7b6c35..e4a3fd1 100644
--- a/po/he.po
+++ b/po/he.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: shy tzedaka <[email protected]>, 2020\n"
 "Language-Team: Hebrew (https://www.transifex.com/mate/teams/13566/he/)\n"
@@ -583,12 +583,12 @@ msgstr ""
 "MATE. אם מעניין אותך לדעת עוד על MATE ועל המחשבון של MATE, נא לבקר בדף הבית "
 "של המיזם."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "המחשבון של MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "מחשבון"
 
@@ -955,7 +955,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "שגיאה: מספר התקופות חייב להיות ערך חיובי"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -966,7 +966,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -983,7 +983,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1003,7 +1003,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1013,13 +1013,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Unknown argument '%s'"
@@ -1210,12 +1210,12 @@ msgid "Boolean NOT"
 msgstr "NOT לוגי"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "החלק השלם"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "חלק השבר"
 
@@ -1300,28 +1300,28 @@ msgid "Straight Line Depreciation"
 msgstr "פחת בשיטת קו ישר"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "בינרי"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "אוקטלי"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "עשרוני"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "הקסדצימלי"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1332,7 +1332,7 @@ msgstr[3] "_%d מקומות"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1342,103 +1342,103 @@ msgstr[2] "%d מקומות"
 msgstr[3] "%d מקומות"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "עיגול"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "רצפה"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "תקרה"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "סימן"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "מהירות האור"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 מ׳ לשנייה"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "קבוע מגנטי"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "‎1.2566370614×10⁻⁶ N/A²‎"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "קבוע חשמלי"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "‎8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "קבוע של ניוטון לכבידה"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "‎6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "קבוע פלאנק"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "‎6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "מטען יסודי"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "‎1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "מסת מנוחה של אלקטרון"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "‎9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "מסת פרוטון"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "‎1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "קבוע אבוגדרו"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "‎6.02214086×10²³ mol⁻¹"
 
@@ -1454,76 +1454,76 @@ msgid "Switch conversion units"
 msgstr "החלפת יחידות ההמרה"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "אין היסטוריית ביטול"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "אין היסטוריית שחזור"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "אין ערך שפוי לשמירה"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "הצפה, יש לנסות גודל word גדול יותר"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "המשתנה '%s' אינו מוכר"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "הפונקציה '%s' אינה מוגדרת"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "המרה בלתי מוכרת"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "ביטוי שגוי לאסימון '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "ביטוי שגוי"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "מתבצע חישוב"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "נדרש שלם חיובי כדי לפרק לגורמים"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "אין ערך שפוי לביצוע הזזת סיביות"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "הערך המוצג איננו שלם חיובי"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1575,19 +1575,19 @@ msgid "Show %d decimal _places"
 msgstr "הצגת %d _מקומות עשרוניים"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "לא ניתן לפתוח את קובץ העזרה"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "סאן מיקרוסיסטמס"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "צוות התיעוד של MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1598,7 +1598,7 @@ msgstr ""
 "הרישיון הציבורי הכללי של GNU כפי שפורסם על ידי קרן התכנה החופשית, בין אם "
 "גרסה 2 של הרישיון או (לשיקולך) גרסה עדכנית יותר שלו."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1609,7 +1609,7 @@ msgstr ""
 " למסחריות או התאמה לשימוש מסוים. ניתן לעיין ברישיון הציבורי הכללי של GNU "
 "לפרטים נוספים."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1619,7 +1619,7 @@ msgstr ""
 "אם לא, יש לכתוב אל Free Software Foundation, Inc., 51 Franklin Street, Fifth"
 " Floor, Boston, MA 02110-1301, USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1628,99 +1628,99 @@ msgstr ""
 "מחשבון עם מצבים כלכליים ומדעיים.\n"
 "נעשה שימוש ב־GNU MPFR %s וב־GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "על אודות המחשבון של MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Yaron Shahrabani <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_מחשבון"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_מצב"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_תצוגה"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ע_זרה"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_בסיסי"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_מתקדם"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_פיננסי"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_תכנות"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "הי_סטוריה"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_תוכן עניינים"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "ה_עתק"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ה_דבק"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_ביטול"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_ביצוע שוב"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "מ_חיקת ההיסטוריה"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "ה_עדפות"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_יציאה"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "על _אודות"
 
@@ -1769,19 +1769,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "הלוגריתם של אפס אינו מוגדר"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "השורש האפסי של מספר אינו מוגדר"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "פירוק לגורמים אפשרי עבור מספרים שינם שליליים בלבד"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "חלוקת שארית מוגדרת רק עבור שלמים חיוביים"
 
@@ -1789,17 +1789,17 @@ msgstr "חלוקת שארית מוגדרת רק עבור שלמים חיוביי
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "החזקה של אפס אינה מוגדרת עבור מעריך שלילי"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "פונקציית השגיאה מוגדרת עבור מספרים ממשיים בלבד"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "פונקציית זטא של רימן מוגדרת רק עבור מספרים ממשיים ≠1"
 
diff --git a/po/hi.po b/po/hi.po
index c1203a1..ca9bc1c 100644
--- a/po/hi.po
+++ b/po/hi.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Hindi (https://www.transifex.com/mate/teams/13566/hi/)\n"
@@ -581,12 +581,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "माटे कैल्क्यलेटर"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "गणक"
 
@@ -953,7 +953,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "त्रुटि: अवधियों की संख्या जरूर धनात्मक होनी चाहिए"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -964,7 +964,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -981,7 +981,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1001,7 +1001,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1011,13 +1011,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "अज्ञात वितर्क '%s'"
@@ -1208,12 +1208,12 @@ msgid "Boolean NOT"
 msgstr "बूलियन NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "पूर्णांक घटक"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "फैक्टोरियल घटक"
 
@@ -1298,28 +1298,28 @@ msgid "Straight Line Depreciation"
 msgstr "सीधी पंक्ति कमी"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "द्विचर"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ओक्टल"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "दशांश"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "हेक्साडेसीमल"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1328,7 +1328,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1336,103 +1336,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "गोल"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "फर्श"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "छत"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "हस्ताक्षर करें"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1448,76 +1448,76 @@ msgid "Switch conversion units"
 msgstr "रूपांतरण इकाई बदलें"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "कोई वापस लेना इतिहास नहीं"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "वापस लेने का कोई इतिहास नहीं"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "भंडारन के लिये कोई सेन मान नहीं"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "अतिप्रवाह. किसी बड़े शब्द आकार आजमाएँ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "अज्ञात चर '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "प्रकार्य '%s' परिभाषित नहीं"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "अज्ञात वार्तालाप"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "विकृत वाक्यांश इस टोकन पर '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "विरूपित अभिव्यक्ति"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "गणना कर रहा है"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "फैक्टराइज करने के लिए किसी पूर्णांक की जरूरत"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "बिटवाइज शिफ्ट के लिये कोई सेन मान नहीं"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "दिखाया गया मान पूर्णांक नहीं"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1569,19 +1569,19 @@ msgid "Show %d decimal _places"
 msgstr "%d दशमलव स्थान तक दिखाएँ (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "मदद फाइल खोलने में असमर्थ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1589,7 +1589,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1597,31 +1597,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "राजेश रंजन ([email protected])\n"
@@ -1630,84 +1630,84 @@ msgstr ""
 "राघवन गोपालकृष्णन्  ([email protected])"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "गणक (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_मोड़"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "देखें (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "मदद (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "मौलिक (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "उन्नत (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "वित्तिय (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "प्रोग्रामिंग (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "विषय सूची (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "प्रतिलिपि (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "चिपकाएँ (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "पहले जैसा (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "फिर करें (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "वरीयताएँ (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "बाहर जाएँ (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "परिचय (_A)"
 
@@ -1756,19 +1756,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "शून्य का लघुगुणक अपरिभाषित है"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "मॉड्यूलस डिविजन केवल पूर्णांकों के लिए परिभाषित है"
 
@@ -1776,17 +1776,17 @@ msgstr "मॉड्यूलस डिविजन केवल पूर्ण
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "नकारात्मक घातांक के लिए शून्य का घात अपरिभाषित है"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/hr.po b/po/hr.po
index 559044c..3882d3d 100644
--- a/po/hr.po
+++ b/po/hr.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Croatian (https://www.transifex.com/mate/teams/13566/hr/)\n"
@@ -556,12 +556,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE kalkulator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -926,7 +926,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -935,7 +935,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -947,7 +947,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -960,7 +960,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -968,13 +968,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Nepoznati argument '%s'"
@@ -1165,12 +1165,12 @@ msgid "Boolean NOT"
 msgstr "Logično \"NE\""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1255,28 +1255,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binarni"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktalni"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimalni"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadecimalni"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1286,7 +1286,7 @@ msgstr[2] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1295,103 +1295,103 @@ msgstr[1] ""
 msgstr[2] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Najmanje cijelo (zaokruživanje na manje)"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Najveće cijelo (zaokruživanje na više)"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1407,76 +1407,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Vrijednost se ne može spremiti"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Nepoznata vrijabla '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkcija '%s' nije definirana"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Krivo formiran izraz"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Računam"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1528,19 +1528,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nije moguće otvoriti datoteku pomoći"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE dokumentacijski tim"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1548,7 +1548,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1556,31 +1556,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Prijevod na Transifexu:\n"
@@ -1608,84 +1608,84 @@ msgstr ""
 "  young https://launchpad.net/~davorin-sego"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Način rada"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Pogled"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Pomoć"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Napredno"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Sadržaj"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiraj"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Zalijepi"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Poništi"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ponovi"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Prilagodbe"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Završi"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_O programu"
 
@@ -1734,19 +1734,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1754,17 +1754,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/hu.po b/po/hu.po
index 6435cd3..06747d1 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -14,8 +14,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Hungarian (https://www.transifex.com/mate/teams/13566/hu/)\n"
@@ -587,12 +587,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE számológép"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Számológép"
 
@@ -959,7 +959,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Hiba: a periódusok számának pozitívnak kell lennie"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -970,7 +970,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -987,7 +987,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1008,7 +1008,7 @@ msgstr ""
 "  --g-fatal-warnings              Minden figyelmeztetés végzetes legyen"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1018,13 +1018,13 @@ msgstr ""
 "  -s, --solve <egyenlet>          A megadott egyenlet megoldása"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "A --solve kapcsolóhoz meg kell adni egy megoldandó egyenletet"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Ismeretlen kapcsoló: „%s”"
@@ -1215,12 +1215,12 @@ msgid "Boolean NOT"
 msgstr "Logikai NEM"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Egészrész"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Törtrész"
 
@@ -1305,28 +1305,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineáris értékcsökkenési leírás"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Kettes (bináris)"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Nyolcas (oktális)"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Tizes (decimális)"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Tizenhatos (hexadecimális)"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1335,7 +1335,7 @@ msgstr[1] "_%d jegy"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1343,103 +1343,103 @@ msgstr[0] "%d jegy"
 msgstr[1] "%d jegy"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Kerekítés"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Alsó egészrész"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Felső egészrész"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Előjel"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1455,76 +1455,76 @@ msgid "Switch conversion units"
 msgstr "Mértékegységek cseréje"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "A visszavonási műveletnek nincsenek előzményei"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "A mégis műveletnek nincsenek előzményei"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nincs tárolható ép kifejezés"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Túlcsordulás. Próbálja nagyobb szóhosszal."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Ismeretlen változó: „%s”"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "A függvény („%s”) nincs meghatározva"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Ismeretlen konverzió"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Hibás kifejezés a(z) „%s” jelnél"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Hibás kifejezés"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Számítás"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "A faktorizáláshoz egész szám szükséges"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nincs értelmes érték a bitenkénti eltoláshoz"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "A megjelenített érték nem egész"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1576,19 +1576,19 @@ msgid "Show %d decimal _places"
 msgstr "%d decimális _hely megjelenítése"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "A súgófájl nem nyitható meg"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE dokumentációs csapat"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1599,7 +1599,7 @@ msgstr ""
 "Software Foundation által kiadott GNU General Public License rendelkezései "
 "szerint, a licenc 2-es vagy későbbi verziója szerint."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1611,31 +1611,31 @@ msgstr ""
 "alkalmas-e az ELADHATÓSÁGRA vagy EGY BIZONYOS FELADAT ELVÉGZÉSÉRE. További "
 "részletekért tanulmányozza a GNU GPL licencet."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "A MATE számológép névjegye"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Dvornik László<dvornik at mate dot hu>\n"
@@ -1648,84 +1648,84 @@ msgstr ""
 "Meskó Balázs <mesko dot balazs at fsf dot hu>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Számológép"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mód"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Nézet"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Súgó"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Alap"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Speciális"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Pénzügyi"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programozói"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Tartalom"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Másolás"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Beillesztés"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Visszavonás"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Mé_gis"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Beállítások"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Kilépés"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Névjegy"
 
@@ -1774,19 +1774,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "A nulla logaritmusa nincs meghatározva"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "A maradékos osztás csak egészekre van meghatározva"
 
@@ -1794,17 +1794,17 @@ msgstr "A maradékos osztás csak egészekre van meghatározva"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Nulla hatványozása nincs meghatározva negatív kitevőre"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/hy.po b/po/hy.po
index 92c4808..e3ffd0d 100644
--- a/po/hy.po
+++ b/po/hy.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Siranush <[email protected]>, 2020\n"
 "Language-Team: Armenian (https://www.transifex.com/mate/teams/13566/hy/)\n"
@@ -579,12 +579,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Հաշվիչ"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Հաշվիչ"
 
@@ -950,7 +950,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Սխալը․ Ժամանակաշրջանների քանակը դրական պիտի լինի"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -961,7 +961,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -978,7 +978,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -998,7 +998,7 @@ msgstr ""
 "  --g-fatal-warnings        Բոլոր զգուշացումները դարձնել ճակատագրական"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1008,13 +1008,13 @@ msgstr ""
 "-s, --solve <equation> Լուծել տրված հավասարումը"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Արգումենտ --լուծման համար պահանջվում է հավասարում"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Անհայտ արգումենտ '%s'"
@@ -1205,12 +1205,12 @@ msgid "Boolean NOT"
 msgstr "Տրամաբանական ՈՉ"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Ամբողջ Կոմպոնենտ"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Կոտորակային Կոմպոնենտ"
 
@@ -1295,28 +1295,28 @@ msgid "Straight Line Depreciation"
 msgstr "Ուղիղ Գծի Ամորտիզացիան"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Երկուական"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Ութական"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Տասական"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Տասնվեցական"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1325,7 +1325,7 @@ msgstr[1] "_%d նիշ"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1333,103 +1333,103 @@ msgstr[0] "%d նիշ"
 msgstr[1] "%d նիշ"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Մոտարկում"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Հատակ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr " Առաստաղ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Ստորագրել"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1445,76 +1445,76 @@ msgid "Switch conversion units"
 msgstr "Անջատել փոխարկման միավորները"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ետարկում հնարավոր չէ"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Կրկնելը հնարավոր չէ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Պահեստավորման համար թիվը ճիշտ չէ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Սահմանանց թիվ։ Փորձեք ավելի մեծ չափսի բառ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Անհայտ փոփոխական '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Ֆունկցիան '%s' սահմանված չէ"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Անհայտ փոխարկում"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Աղավաղված արտահայտության նշան '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Սխալ ձևակերպված արտահայտություն"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Հաշվարկում"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Ամբողջ թիվը պետք է վերլուծել արտադրիչների"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Բիտ-առ-բիտ գործողության կատարման համար թիվը ճիշտ չէ"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Ցուցադրեց արժեք աչ ամբողջաթիվ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1566,19 +1566,19 @@ msgid "Show %d decimal _places"
 msgstr "Ցույց տալ %d տասնորդական _վայրերը"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Օգնության ֆայլը չհաջողվեց բացել"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE փաստաթղթավորման թիմ"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1586,7 +1586,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1594,113 +1594,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "թարգմանչի կրեդիտներ"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Հաշվիչ"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Ռեժիմ"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Դիտել"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Օգնություն"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "Հ_իմնական"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Ընդլայնված"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Ֆինանսական"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Ծրագրավորման"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Բովանդակություն"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Պատճեն"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Փակցնել"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Հետադարձել"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Կրկնել"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Նախընտրանքներ"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Ելք"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Մասին"
 
@@ -1749,19 +1749,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Զրոյի լոգարիթմը սահմանված չէ"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Մոդուլի բաժանումը սահմանվում է միայն ամբողջ թվերի համար"
 
@@ -1769,17 +1769,17 @@ msgstr "Մոդուլի բաժանումը սահմանվում է միայն ա�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Զրոյի աստիճանը սահմանված չէ բացասական էքսպոնենտի համար"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/id.po b/po/id.po
index b74a7fd..fe8be9e 100644
--- a/po/id.po
+++ b/po/id.po
@@ -18,8 +18,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Andika Triwidada <[email protected]>, 2021\n"
 "Language-Team: Indonesian (https://www.transifex.com/mate/teams/13566/id/)\n"
@@ -596,12 +596,12 @@ msgstr ""
 "Lingkungan Desktop MATE. Bila Anda ingin tahu lebih banyak tentang MATE dan "
 "Kalkulator MATE, silakan kunjungi laman beranda proyek."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Calculator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -969,7 +969,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Galat: cacah perioda mesti positif"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -980,7 +980,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -997,7 +997,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1017,7 +1017,7 @@ msgstr ""
 "  --g-fatal-warnings              Membuat semua peringatan menjadi fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1027,13 +1027,13 @@ msgstr ""
 "  -s, --solve <equation>          Memecahkan persamaan"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumen --solve harus diikuti persamaan untuk diselesaikan"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argumen '%s' tak dikenal"
@@ -1224,12 +1224,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NOT (BUKAN/TIDAK)"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Komponen Integer"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Komponen Fraksional"
 
@@ -1314,28 +1314,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depresiasi Garis Lurus"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Biner"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadesimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1343,110 +1343,110 @@ msgstr[0] "_%d posisi"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "%d posisi"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Pembulatan"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Pembulatan turun"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Pembulatan naik"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Tanda"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Kecepatan Cahaya"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299.792.458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Konstanta magnetik"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Konstanta elektrik"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Konstanta gravitasi Newton"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Konstanta Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Muatan elementer"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Massa elektron"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Massa proton"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Konstanta Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1462,76 +1462,76 @@ msgid "Switch conversion units"
 msgstr "Berpindah unit konversi"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Tidak ada riwayat \"tak jadi\""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Tidak ada riwayat \"jadi lagi\""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Belum ada nilai untuk disimpan"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Kelebihan data. Cobalah ukuran huruf yang lebih besar"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variabel tak dikenal '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Fungsi '%s' belum didefinisikan"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Konversi tak dikenal"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Ekspresi salah bentuk pada token '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Ekspresi salah"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Sedang menghitung"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Perlu nilai integer untuk difaktorkan"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Tidak ada nilai yang wajar untuk mengeser bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Nilai yang ditampilkan bukan integer"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1583,19 +1583,19 @@ msgid "Show %d decimal _places"
 msgstr "Tam_pilkan %d angka di belakang koma"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Tidak dapat membuka berkas bantuan"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Tim Dokumentasi MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1607,7 +1607,7 @@ msgstr ""
 "dipublikasikan oleh Free Software Foundation; baik versi 2 dari Lisensi, "
 "atau (terserah pilihan Anda) versi setelahnya."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1618,7 +1618,7 @@ msgstr ""
 "ADANYA JAMINAN; termasuk tanpa jaminan DAYA JUAL atau KELAIKAN UNTUK TUJUAN "
 "TERTENTU. Lihat GNU General Public License untuk rincian lebih lanjut."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1629,7 +1629,7 @@ msgstr ""
 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, "
 "USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1638,11 +1638,11 @@ msgstr ""
 "Kalkulator dengan mode finansial dan ilmiah.\n"
 "Memakai GNU MPFR %s dan GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Tentang Kalkulator MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1650,7 +1650,7 @@ msgstr ""
 "Hak Cipta © 1986–2010 para penulis GCalctool\n"
 "Hak Cipta © 2011-2021 para pengembang MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Mohammad DAMT <[email protected]>\n"
@@ -1661,84 +1661,84 @@ msgstr ""
 "Andika Triwidada <[email protected]>, 2020, 2021."
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Tampilan"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Bantuan"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Dasar"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "L_anjutan"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansial"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Pemrograman"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Riwayat"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Isi"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Salin"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Tem_pel"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Tak Jadi"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Jadi Lagi"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Bersihkan Riwayat"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferensi"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Keluar"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Tentang"
 
@@ -1787,19 +1787,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritma nol tidak didefinisikan"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Akar ke nol dari suatu bilang tidak terdefinisi"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Faktorial hanya didefinisikan untuk bilangan riil bukan negatif"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Pembagian modulus hanya didefinisikan untuk integer"
 
@@ -1807,17 +1807,17 @@ msgstr "Pembagian modulus hanya didefinisikan untuk integer"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Perpangkatan nol tidak didefinisikan untuk eksponen negatif"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Fungsi error hanya didefinisikan untuk bilangan riil"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Fungsi Riemann zeta hanya didefinisikan untuk bilangan riil ≠1"
 
diff --git a/po/ie.po b/po/ie.po
index 51f1dbd..ff823ea 100644
--- a/po/ie.po
+++ b/po/ie.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Caarmi, 2020\n"
 "Language-Team: Interlingue (https://www.transifex.com/mate/teams/13566/ie/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculator MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -966,13 +966,13 @@ msgstr ""
 "  -s, --solve <equation>          Solver li providet equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Ínconosset argument \"%s\""
@@ -1163,12 +1163,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Integral parte"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Fractional parte"
 
@@ -1253,28 +1253,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binari"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1283,7 +1283,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1291,103 +1291,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signe"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1403,76 +1403,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Ínconosset variabile \"%s\""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Function «%s» ne es definit"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Ínconosset convertion"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculante"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1524,19 +1524,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1548,7 +1548,7 @@ msgstr ""
 "Software Foundation; either version 2 of the License, or (at your option) "
 "any later version."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1560,113 +1560,113 @@ msgstr ""
 "or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
 " more details."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Plu li Calculator MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "OIS <[email protected]>, 2019"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mode"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vise"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Au_xilie"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avansat"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmation"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Contenete"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Co_llar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Defar"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refar"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferenties"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "S_urtir"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Pri"
 
@@ -1715,19 +1715,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1735,17 +1735,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/is.po b/po/is.po
index 0589d02..37eeed1 100644
--- a/po/is.po
+++ b/po/is.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Icelandic (https://www.transifex.com/mate/teams/13566/is/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,31 +1551,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Samúel Jón Gunnarsson <[email protected]>, 2003\n"
@@ -1583,84 +1583,84 @@ msgstr ""
 "Aðrir FOSS íslenskuþýðendur"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "S_koða"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hjálp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Innihald"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Afrita"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Líma"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Afturkalla"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Endurgera"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Stillingar"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Hætta"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Um"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/it.po b/po/it.po
index 8836427..ef7079f 100644
--- a/po/it.po
+++ b/po/it.po
@@ -17,8 +17,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Alessandro Volturno <[email protected]>, 2021\n"
 "Language-Team: Italian (https://www.transifex.com/mate/teams/13566/it/)\n"
@@ -596,12 +596,12 @@ msgstr ""
 "desideri ulteriori informazioni su MATE e MATE Calc, visita il sito web del "
 "progetto."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calcolatrice di MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calcolatrice"
 
@@ -969,7 +969,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Errore: il numero di periodi deve essere positivo"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -980,7 +980,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -997,7 +997,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1017,7 +1017,7 @@ msgstr ""
 "  --g-fatal-warnings              Rende fatali tutti gli avvertimenti"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1027,13 +1027,13 @@ msgstr ""
 "  -s, --solve <equazione>          Risolve l'equazione data"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "L'argomento --solve richiede un'equazione da risolvere"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argomento \"%s\" sconosciuto"
@@ -1224,12 +1224,12 @@ msgid "Boolean NOT"
 msgstr "NOT booleano"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Parte intera"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Parte frazionaria"
 
@@ -1314,28 +1314,28 @@ msgid "Straight Line Depreciation"
 msgstr "Ammortamento lineare"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binario"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Ottale"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimale"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Esadecimale"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1344,7 +1344,7 @@ msgstr[1] "_%d posti"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1352,103 +1352,103 @@ msgstr[0] "%d posto"
 msgstr[1] "%d posti"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arrotonda"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Arrotonda per difetto"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Arrotonda per eccesso"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Segno"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Velocità della luce"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Permeabilità magnetica del vuoto"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Costante dielettrica del vuoto"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Costante di gravitazione"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Costante di Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Carica elementare"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Massa a riposo dell'elettrone"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Massa a riposo del protone"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Costante di Avogadro "
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1464,76 +1464,76 @@ msgid "Switch conversion units"
 msgstr "Inverte l'unità di conversione"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Nessuna cronologia annullamenti"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Nessuna cronologia ripetizioni"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nessun valore corretto da memorizzare"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overflow. Provare una dimensione maggiore per la word"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variabile «%s» sconosciuta"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La funzione «%s» non è definita"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversione sconosciuta"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Espressione malformata al token «%s»"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Espressione malformata"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calcolo"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Per fattorizzare è necessario un numero intero"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nessun valore corretto per eseguire lo shift bit a bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Il valore visualizzato non è un intero"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1585,19 +1585,19 @@ msgid "Show %d decimal _places"
 msgstr "Mostra %d _posizioni decimali"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Impossibile aprire il file del manuale"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Team Documentazione MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1609,7 +1609,7 @@ msgstr ""
 "pubblicata dalla Free Software Foundation; versione 2 della licenza, o (a "
 "scelta) una versione successiva."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1621,7 +1621,7 @@ msgstr ""
 "o APPLICABILITÀ PER UNO SCOPO PARTICOLARE. Per maggiori dettagli consultare "
 "la GNU General Public License."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1632,7 +1632,7 @@ msgstr ""
 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, "
 "USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1641,11 +1641,11 @@ msgstr ""
 "Calcolatrice con modalità finanziaria e scientifica.\n"
 "Utilizza GNU MPFR %s e GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Info su Calcolatrice di MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1653,91 +1653,91 @@ msgstr ""
 "Copyright © 1986–2010 Gli autori di GCalctool\n"
 "Copyright © 2011-2021 Gli sviluppatori di MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Enrico Bella, 2019\n"
 "Alessandro Volturno, 2020"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calcolatrice"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modalità"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Visualizza"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Aiuto"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Base"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avanzata"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finanziaria"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmazione"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Cronologia"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Sommario"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copia"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Incolla"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Annulla"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ripeti"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Cancella cronologia"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferenze"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Esci"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Informazioni"
 
@@ -1786,19 +1786,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Il logaritmo di zero non è definito"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "La radice zero di un numero non è definita"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Il fattoriale è definito solo per numeri reali non-negativi"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "La divisione modulo è definita solo per i numeri interi"
 
@@ -1806,17 +1806,17 @@ msgstr "La divisione modulo è definita solo per i numeri interi"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La potenza di zero non è definita per un esponente negativo"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "La funzione errore è definita solo per i numeri reali"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "La funzione zeta di Riemann è definita solo per i numeri reali ≠ 1"
 
diff --git a/po/ja.po b/po/ja.po
index f558ebe..b8bbbe9 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -6,12 +6,9 @@
 # Translators:
 # Rockers <[email protected]>, 2018
 # IWAI, Masaharu <[email protected]>, 2018
-# あわしろいくや <[email protected]>, 2018
 # Mika Kobayashi, 2018
 # shinmili <[email protected]>, 2018
 # ふうせん Fu-sen. | BALLOON a.k.a. Fu-sen., 2018
-# Wolfgang Ulbrich <[email protected]>, 2019
-# Aefgh Threenine <[email protected]>, 2019
 # ABE Tsunehiko, 2019
 # Stefano Karapetsas <[email protected]>, 2020
 # Green, 2021
@@ -19,8 +16,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Green, 2021\n"
 "Language-Team: Japanese (https://www.transifex.com/mate/teams/13566/ja/)\n"
@@ -126,7 +123,7 @@ msgstr "定数"
 #. Tooltip for the compounding term button
 #: src/buttons-financial.ui:8 src/math-buttons.c:254
 msgid "Compounding Term"
-msgstr "複利計算期"
+msgstr "複利計算期間"
 
 #: src/buttons-financial.ui:28 src/buttons-financial.ui:211
 #: src/buttons-financial.ui:394 src/buttons-financial.ui:577
@@ -161,7 +158,7 @@ msgid ""
 "Calculates the number of compounding periods necessary to increase an "
 "investment of present value to a future value, at a fixed interest rate per "
 "compounding period."
-msgstr "現在の投資額をある将来価値に増額するのに必要な複利計算期の年数を固定金利に基づいて計算します。"
+msgstr "現在の投資額をある将来価値に増額するのに必要な複利計算期間の年数を固定金利に基づいて計算します。"
 
 #. Compounding Term Dialog: Label before periodic interest rate input
 #. Future Value Dialog: Label before periodic interest rate input
@@ -551,7 +548,7 @@ msgstr "MATE 電卓"
 
 #: data/mate-calc.appdata.xml.in:8
 msgid "MATE Desktop calculator"
-msgstr "MATE デスクトップ・電卓"
+msgstr "MATE 卓上計算機"
 
 #: data/mate-calc.appdata.xml.in:10
 msgid ""
@@ -570,12 +567,12 @@ msgstr ""
 "MATE 電卓は GNOME 電卓のフォークであり、MATE デスクトップ環境の一部です。もしあなたが MATE と MATE "
 "電卓についてもっと知りたければ、プロジェクトのウェブサイトを参照してください。"
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE 電卓"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "電卓"
 
@@ -940,7 +937,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "エラー: 期間は正でなくてはなりません"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -951,7 +948,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -968,7 +965,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -988,7 +985,7 @@ msgstr ""
 "  --g-fatal-warnings              すべての警告を致命的とみなす"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -998,13 +995,13 @@ msgstr ""
 "  -s, --solve <equation>          与えられた方程式を解く"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "引数 --solve には、解決すべき方程式を指定する必要があります"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "不明な引数 '%s'"
@@ -1195,12 +1192,12 @@ msgid "Boolean NOT"
 msgstr "真偽値の否定"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "整数部"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "端数"
 
@@ -1285,28 +1282,28 @@ msgid "Straight Line Depreciation"
 msgstr "定額法による減価償却費"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "2進数"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "8進数"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "10進数"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "16進数"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1314,110 +1311,110 @@ msgstr[0] "_%d 場所"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "%d 場所"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "数値の丸め込み"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "切り捨て"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "切り上げ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "符号"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "光速度"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "磁気定数"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "電気定数"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "ニュートンの重力定数"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "プランク定数"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "電気素量"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "電子質量"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "プロトン質量"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "アボガドロ定数"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1433,76 +1430,76 @@ msgid "Switch conversion units"
 msgstr "単位変換を切り替える"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "アンドゥの履歴はありません"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "リドゥの履歴はありません"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "格納する値が正しくありません"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "オーバーフローしました。Wordサイズを大きくして試してください。"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "変数 '%s' が不明です"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "関数 '%s' は未定義です"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "変換方法が分かりません"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "'%s' は解釈できない表現です"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "計算式が間違っています"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "計算中"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "因数分解は整数のみです"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "ビット単位でシフトする値が正しくありません"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "整数以外の値を表示します"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1554,19 +1551,19 @@ msgid "Show %d decimal _places"
 msgstr "小数点以下第 %d 位まで表示 (_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ヘルプを表示できません"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
-msgstr "Sun Microsystems"
+msgstr "サン・マイクロシステムズ"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
-msgstr "MATE ドキュメンテーション・チーム"
+msgstr "MATE 文書化チーム"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1576,7 +1573,7 @@ msgstr ""
 "MATE 電卓は自由ソフトウェアです; フリーソフトウェア財団が発行する GNU "
 "一般公衆ライセンスの第二版、あるいはそれ以降の版が定める条項の下で本プログラムを再頒布または改変することができます。"
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1587,7 +1584,7 @@ msgstr ""
 "電卓は役に立つことを期待して配布されいていますが、完全に無保証です。商品性や十分な品質、特定の目的への適合性についての暗黙の保証も一切ありません。詳細については"
 " GNU 一般公衆利用許諾を参照してください。"
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1597,7 +1594,7 @@ msgstr ""
 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA"
 " まで手紙を書いてください。"
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1606,11 +1603,11 @@ msgstr ""
 "財務と科学計算のモードを持つ電卓です。\n"
 "これは GNU MPFR %s と GNU MPC %s を利用します。"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "MATE 電卓について"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1618,100 +1615,102 @@ msgstr ""
 "Copyright © 1986–2010 GCalctool 作成者\n"
 "Copyright © 2011-2021 MATE 開発者"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
-"相花 毅 <[email protected]>\n"
-"佐藤 暁 <[email protected]>\n"
-"KAMAGASAKO Masatoshi <[email protected]>\n"
-"Akira TAGOH <[email protected]>\n"
-"Yukihiro Nakai <[email protected]>\n"
-"Yuusuke Tahara <[email protected]>\n"
-"Akira Higuchi <[email protected]>\n"
-"やまね ひでき <[email protected]>\n"
-"草野 貴之 <[email protected]>\n"
-"松澤 二郎 <[email protected]>\n"
-"日本GNOMEユーザー会 http://www.gnome.gr.jp/"
+"相花 毅 \n"
+"佐藤 暁 \n"
+"KAMAGASAKO Masatoshi \n"
+"Akira TAGOH \n"
+"Yukihiro Nakai \n"
+"Yuusuke Tahara \n"
+"Akira Higuchi \n"
+"やまね ひでき \n"
+"草野 貴之 \n"
+"松澤 二郎 \n"
+"Green, alias usergreen\n"
+"日本GNOMEユーザー会 http://www.gnome.gr.jp/\n"
+"MATE 文書化チーム https://www.transifex.com/mate/ "
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "計算機(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "モード(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "表示(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ヘルプ(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "基本(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "拡張(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "財務(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
-msgstr "プログラミング(_P)"
+msgstr "プログラム(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_履歴"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "目次(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "コピー(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "貼り付け(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "元に戻す(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "やり直す(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_履歴をクリア"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "設定(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "終了 (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "情報(_A)"
 
@@ -1760,19 +1759,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "ゼロの対数は未定義です"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "番号の0番目のルートが定義されていません"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "階乗は非負実数に対してのみ定義されます"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "剰余は整数のみ定義しています"
 
@@ -1780,17 +1779,17 @@ msgstr "剰余は整数のみ定義しています"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "負の指数関数に対するゼロの乗数は未定義です"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "誤差関数は実数に対してのみ定義されます"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "リーマンゼータ関数は実数≠1に対してのみ定義されます"
 
diff --git a/po/ka.po b/po/ka.po
index 1751a78..dee8b3d 100644
--- a/po/ka.po
+++ b/po/ka.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Georgian (https://www.transifex.com/mate/teams/13566/ka/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "კალკულატორი"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "ამ მნიშვნელობის შენახვა შეუძლებელია"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "არასწორი გამოსახულება"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Vladimer Sichinava ვლადიმერ სიჭინავა <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_კალკულატორი"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_ხედი"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_დახმარება"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_მარტივი"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_დამატებითი"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_ფინანსური"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_შინაარსი"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_კოპირება"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ჩა_სმა"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "გა_უქმება"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "გამეო_რება"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_პარამეტრები"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_გასვლა"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_შესახებ"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/kab.po b/po/kab.po
index f652888..e53fee1 100644
--- a/po/kab.po
+++ b/po/kab.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Slimane Selyan AMIRI <[email protected]>, 2021\n"
 "Language-Team: Kabyle (https://www.transifex.com/mate/teams/13566/kab/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,31 +1550,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
@@ -1582,84 +1582,84 @@ msgstr ""
 "  Slimane Amiri https://launchpad.net/~slimaneamiri"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "Sk_en"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Ta_llalt"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Suken"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Senteḍ"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Se_fsex"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "E_rr-d"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Ɣef"
 
@@ -1708,19 +1708,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1728,17 +1728,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/kk.po b/po/kk.po
index 46ced96..8a7484f 100644
--- a/po/kk.po
+++ b/po/kk.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Kazakh (https://www.transifex.com/mate/teams/13566/kk/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE калькуляторы"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Калькулятор"
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Белгісіз аргумент '%s'"
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr "Логикалық ЕМЕС"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Екілік"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Сегіздік"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Ондық"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Он алтылық"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Қолтаңба"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Болдырмау тарихы жоқ"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Қайталау тарихы жоқ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Сақтау үшін жарамды мәндер жоқ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Белгісіз айнымалы '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' функциясы анықталмаған"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Белгісіз айналдыру"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Қате өрнек"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Есептеу"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Көрсетілген шама бүтін емес"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr "Үтірден кейін %d _санды көрсету"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Көмек ақпараты файлын ашу мүмкін емес"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,113 +1551,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Baurzhan Muftakhidinov <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Калькулятор"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Режимі"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Түрі"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Көм_ек"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "Қарапа_йым"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "Кеңейтіл_ген"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "Қар_жылық"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "Бағдарл_амалау"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Құра_масы"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Көшіру"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Кірі_стіру"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Бол_дырмау"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Қай_талау"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Баптаулар"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Шығу"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "О_сы туралы"
 
@@ -1706,19 +1706,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1726,17 +1726,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/km.po b/po/km.po
index 06584eb..9eafcc1 100644
--- a/po/km.po
+++ b/po/km.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2019\n"
 "Language-Team: Khmer (https://www.transifex.com/mate/teams/13566/km/)\n"
@@ -582,12 +582,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "ម៉ាស៊ីនគិតលេខ MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ម៉ាស៊ីន​គិត​លេខ"
 
@@ -955,7 +955,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "កំហុស ៖ ចំនួន​អំឡុង​ពេល​ត្រូវតែ​វិជ្ជមាន"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -966,7 +966,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -983,7 +983,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1003,7 +1003,7 @@ msgstr ""
 "  --g-fatal-warnings ធ្វើ​ការ​ព្រមាន​ធ្ងន់ធ្ងរ​ទាំងអស់"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1013,13 +1013,13 @@ msgstr ""
 "  -s, --ដោះស្រាយ <equation>ដោះស្រាយ​សមីការ​ដែល​បាន​ផ្ដល់"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "អាគុយម៉ង់ --ដោះស្រាយ​ការ​ទាមទារ​សម័យ​ការ​​ត្រូវ​ដោះស្រាយ"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "អាគុយម៉ង់​ដែល​មិនស្គាល់ '%s'"
@@ -1210,12 +1210,12 @@ msgid "Boolean NOT"
 msgstr "ប៊ូលីន NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "សមាសភាគ​លេខគត់"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "សមាសភាគ​នៃ​ប្រភាគ"
 
@@ -1300,28 +1300,28 @@ msgid "Straight Line Depreciation"
 msgstr "រំលោះ​តាម​បន្ទាត់​ត្រង់"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "គោល​ពីរ"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "គោល​ប្រាំបី"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "គោល​ដប់​"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "គោល​ដប់ប្រាំមួយ"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1329,110 +1329,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ជុំ"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "បាត"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Ceiling"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ចុះហត្ថលេខា"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1448,76 +1448,76 @@ msgid "Switch conversion units"
 msgstr "ប្ដូរ​ឯកតា​ការ​បម្លែង"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "គ្មាន​ប្រវត្តិ​មិន​ធ្វើ​វិញ"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "គ្មាន​ប្រវត្តិ​ធ្វើ​វិញ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "គ្មាន​តម្លៃ​សមស្រប​ត្រូវ​ទុក​ឡើយ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "លើស​ចំនួន ព្យាយាម​ទំហំ​ធំជាង​នេះ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "អថេរ​ដែល​មិន​ស្គាល់ '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "មិន​​បាន​កំណត់​អនុគមន៍ '%s' ឡើយ"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "មិន​ស្គាល់​ការ​បម្លែង"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "កន្សោម​មិន​ត្រឹមត្រូវ"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "ការ​គណនា"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "ត្រូវ​ការ​លេខគត់​ដើម្បី​ដាក់​កត្តា"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "គ្មាន​តម្លៃ​សមស្រប​ ដើម្បី​​ប្ដូរ​​ឈ្នាប់​ឡើយ"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "គ្មាន​តម្លៃ​លេខគត់​​​ដែល​បាន​បង្ហាញ​ឡើយ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1569,19 +1569,19 @@ msgid "Show %d decimal _places"
 msgstr "បង្ហាញ​​ការ​ដាក់​ទសភាគ %d"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "មិន​អាច​បើក​ឯកសារ​ជំនួយ​បាន​ទេ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1589,7 +1589,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1597,113 +1597,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "ខឹម សុខែម, ម៉ន ម៉េត, សេង សុត្ថា, ចាន់ សម្បត្តិរតនៈ, សុខ សុភា"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ម៉ាស៊ីន​គិតលេខ"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "របៀប"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ជំនួយ"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "ជា​គោល"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "កម្រិត​ខ្ពស់"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "ហិរញ្ញវត្ថុ"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "ការ​សរសេរ​កម្មវិធី"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "មាតិកា"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_អំពី"
 
@@ -1752,19 +1752,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "ឡូការីត ០ មិន​ត្រូវ​បាន​កំណត់​ឡើយ"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "វិធី​ចែក​ម៉ូឌុល​ត្រូវ​បាន​កំណត់​ចំពោះ​តែ​លេខគត់​ប៉ុណ្ណោះ"
 
@@ -1772,17 +1772,17 @@ msgstr "វិធី​ចែក​ម៉ូឌុល​ត្រូវ​បា
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "ស្វ័យគុណ ០ មិន​ត្រូវ​បាន​កំណត់​ចំពោះ​​និទស្សន្ត​អវិជ្ជមាន​ឡើយ"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/kn.po b/po/kn.po
index 69a31d8..9f75212 100644
--- a/po/kn.po
+++ b/po/kn.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: karthik holla <[email protected]>, 2020\n"
 "Language-Team: Kannada (https://www.transifex.com/mate/teams/13566/kn/)\n"
@@ -582,12 +582,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "ಮೇಟ್ ಕ್ಯಾಲ್ಕುಲೇಟರ್"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ಕ್ಯಾಲ್ಕುಲೇಟರ್"
 
@@ -955,7 +955,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "ದೋಷ: ಅವಧಿಗಳ ಸಂಖ್ಯೆಯು ಧನಾತ್ಮಕವಾಗಿರಬೇಕು"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -966,7 +966,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -983,7 +983,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1003,7 +1003,7 @@ msgstr ""
 "  --g-fatal-warnings              ಎಲ್ಲಾ ಎಚ್ಚರಿಕೆಗಳನ್ನು ಮಾರಕವಾಗಿಸುತ್ತದೆ"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1013,13 +1013,13 @@ msgstr ""
 "  -s, --solve <equation>          ಒದಗಿಸಲಾದ ಸಮೀಕರಣವನ್ನು ಬಿಡಿಸುತ್ತದೆ"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "ಆರ್ಗುಮೆಂಟ್ --solve ಗಾಗಿ ಪರಿಹರಿಸಲು ಒಂದು ಸಮೀಕರಣದ ಅಗತ್ಯವಿರುತ್ತದೆ"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "ಗೊತ್ತಿರದ ಆರ್ಗುಮೆಂಟ್ '%s'"
@@ -1210,12 +1210,12 @@ msgid "Boolean NOT"
 msgstr "ಬೂಲಿಯನ್ NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "ಪೂರ್ಣಾಂಕದ ಭಾಗ"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "ಭಿನ್ನರಾಶಿ ಭಾಗ"
 
@@ -1300,28 +1300,28 @@ msgid "Straight Line Depreciation"
 msgstr "ನೇರ ರೇಖೆಯ ಸವಕಳಿ"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ಬೈನರಿ"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ಆಕ್ಟಲ್"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ದಶಾಂಶ"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ಹೆಕ್ಸಾಡೆಸಿಮಲ್"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1330,7 +1330,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1338,103 +1338,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ವೃತ್ತಾಕಾರ"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "ನೆಲ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "ಛಾವಣಿ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ಸಂಕೇತ"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1450,76 +1450,76 @@ msgid "Switch conversion units"
 msgstr "ಪರಿವರ್ತನೆ ಏಕಮಾನಗಳನ್ನು ಬದಲಾಯಿಸು"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "ರದ್ದುಗೊಳಿಸಿದ ಇತಿಹಾಸ ಇಲ್ಲ"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "ರದ್ದುಗೊಳಿಸಿದ ಇತಿಹಾಸ ಇಲ್ಲ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "ಶೇಖರಿಸಲು ಸಮರ್ಪಕವಾದ ಯಾವುದೆ ಮೌಲ್ಯವಿಲ್ಲ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ಮಿತಿಮೀರಿದೆ. ಒಂದು ದೊಡ್ಡ ಪದದೊಂದಿಗೆ ಪ್ರಯತ್ನಿಸಿ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "ಗೊತ್ತಿರದ ವೇರಿಯೇಬಲ್ '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' ಎಂಬ ಕ್ರಿಯೆಯನ್ನು ಸೂಚಿಸಲಾಗಿಲ್ಲ"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "ಗೊತ್ತಿರದೆ ಪರಿವರ್ತನೆ"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "'%s' ಟೋಕನ್‌ನಲ್ಲಿ ತಪ್ಪಾದ ಎಕ್ಸ್‍ಪ್ರೆಶನ್"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "ತಪ್ಪಾದ ಎಕ್ಸ್‍ಪ್ರೆಶನ್"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "ಲೆಕ್ಕಹಾಕಲಾಗುತ್ತಿ"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "ಅಪವರ್ತ್ಯಗೊಳಿಸಲು ಒಂದು ಪೂರ್ಣಾಂಕದ ಅಗತ್ಯವಿದೆ"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "ಬಿಟ್‌ವೈಸ್ ಶಿಫ್ಟ್‍ಗೆ ಯಾವುದೆ ಸಮರ್ಪಕವಾದ ಮೌಲ್ಯವಿಲ್ಲ"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "ತೋರಿಸಲಾದ ಮೌಲ್ಯವು ಪೂರ್ಣಾಂಕವಾಗಿಲ್ಲ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1571,19 +1571,19 @@ msgid "Show %d decimal _places"
 msgstr "%d ದಶಾಂಶ ಸ್ಥಾನಗಳನ್ನು ತೋರಿಸು (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ನೆರವಿನ ಕಡತವನ್ನು ತೆರೆಯಲು ಸಾಧ್ಯವಾಗಿಲ್ಲ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1591,7 +1591,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1599,114 +1599,114 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "ಶಂಕರ್ ಪ್ರಸಾದ್ <[email protected]>,ಕಾರ್ತಿಕ ಹೊಳ್ಳ <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ಕ್ಯಾಲ್ಕುಲೇಟರ್(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "ಕ್ರಮ(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "ನೋಟ(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ನೆರವು(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "ಸರಳ(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "ಸುಧಾರಿತ(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "ಹಣಕಾಸು(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "ಪ್ರೊಗ್ರಾಮಿಂಗ್(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "ವಿಷಯಗಳು(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "ಕಾಪಿ ಮಾಡು(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ಅಂಟಿಸು(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "ರದ್ದು ಮಾಡು(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "ಮತ್ತೊಮ್ಮೆ ಮಾಡು(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "ಆದ್ಯತೆಗಳು(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "ಹೊರನಡೆ(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "ಇದರ ಬಗ್ಗೆ(_A)"
 
@@ -1755,19 +1755,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "ಶೂನ್ಯದ ಲಾಗರಿತಮ್ ಅನಿಶ್ಚಿತವಾಗಿರುತ್ತದೆ"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "ಮಾಡ್ಯುಲಸ್ ಭಾಗಿಸುವಿಕೆಯನ್ನು ಕೇವಲ ಪೂರ್ಣಾಂಕಗಳಿಗೆ ಮಾತ್ರ ಸೂಚಿಸಲಾಗುತ್ತದೆ"
 
@@ -1775,17 +1775,17 @@ msgstr "ಮಾಡ್ಯುಲಸ್ ಭಾಗಿಸುವಿಕೆಯನ್ನ�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "ಋಣ ಎಕ್ಸ್‍ಪೋನೆಂಟ್‌ಗಾಗಿ ಶೂನ್ಯದ ಘಾತವನ್ನು ಸೂಚಿಸಲಾಗಿಲ್ಲ"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ko.po b/po/ko.po
index abfb0e4..34a62e4 100644
--- a/po/ko.po
+++ b/po/ko.po
@@ -9,15 +9,15 @@
 # 박정규(Jung-Kyu Park) <[email protected]>, 2019
 # Stefano Karapetsas <[email protected]>, 2019
 # Seong-ho Cho <[email protected]>, 2020
-# Jung Hee Lee <[email protected]>, 2021
+# JungHee Lee <[email protected]>, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Jung Hee Lee <[email protected]>, 2021\n"
+"Last-Translator: JungHee Lee <[email protected]>, 2021\n"
 "Language-Team: Korean (https://www.transifex.com/mate/teams/13566/ko/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -566,12 +566,12 @@ msgstr ""
 "GNOME 계산기는 GNOME 계산기의 포크이며 GNOME 데스크탑 환경의 일부입니다. GNOME와 GNOME 계산기에 대해 더 알고 "
 "싶다면 프로젝트 홈페이지를 방문하십시오."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE 계산기 "
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "계산기"
 
@@ -937,7 +937,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "오류: 기간은 0보다 커야 합니다"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -948,7 +948,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -965,7 +965,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -985,7 +985,7 @@ msgstr ""
 "  --g-fatal-warnings              모든 경고를 치명적으로 취급"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -995,13 +995,13 @@ msgstr ""
 "  -s, --solve <equation>          주어진 식을 풉니다"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "--solve 옵션에는 풀 식이 필요합니다"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "알 수 없는 인수 '%s'"
@@ -1192,12 +1192,12 @@ msgid "Boolean NOT"
 msgstr "불리언 NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "정수 부분"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "분수 부분"
 
@@ -1282,28 +1282,28 @@ msgid "Straight Line Depreciation"
 msgstr "정액 감가상각"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "2진수"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "8진수"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "10진수"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "16진수"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1311,110 +1311,110 @@ msgstr[0] "_%d번 위치"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "%d번 위치"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "반올림"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "내림"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "올림"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "부호"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1430,76 +1430,76 @@ msgid "Switch conversion units"
 msgstr "변환 단위 바꾸기"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "되돌리기 기록 없음"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "다시 실행 기록 없음"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "제대로 된 값을 저장할 수 없습니다"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "오버플로우. 워드 크기를 늘려 보십시오"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "알 수 없는 변수 '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' 함수가 정의되지 않았습니다"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "변환 불가"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "수식 형식이 틀렸습니다 (토큰 '%s')"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "수식 형식이 틀렸습니다"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "계산 중"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "소인수 분해에는 정수 값이 필요합니다"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "비트 쉬프트의 값이 올바르지 않습니다"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "표시 중인 값이 정수가 아닙니다"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1551,19 +1551,19 @@ msgid "Show %d decimal _places"
 msgstr "%d자리 십진수 표시(_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "도움말 파일을 열 수 없습니다"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE 문서화 팀"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1573,7 +1573,7 @@ msgstr ""
 "MATE 계산기는 자유 소프트웨어 입니다. 자유 소프트웨어 재단이 발표한 GNU 일반 공중 사용 허가서 버전 2 또는 (선택에 따라) 그"
 " 이상의 버전의 조항에 의거하여 재배포하거나 수정할 수 있습니다."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1584,7 +1584,7 @@ msgstr ""
 "있으리라는 묵시적인 보증을 포함한 어떠한 형태의 보증도 제공하지 않습니다. 보다 자세한 사항에 대해서는 GNU 일반 공중 사용 허가서를 "
 "참고하시기 바랍니다."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1594,18 +1594,18 @@ msgstr ""
 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 "
 "USA에 편지를 보내십시오."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "MATE 계산기"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1613,7 +1613,7 @@ msgstr ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Elex https://launchpad.net/~mysticzizone\n"
@@ -1625,84 +1625,84 @@ msgstr ""
 "MATE Desktop Environment Team <https://www.transifex.com/mate/teams/13566/ko/>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "계산기(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "종류(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "보기(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "도움말(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "기본(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "고급(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "재무(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "프로그래밍(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "콘텐츠(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "복사(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "붙여넣기(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "되돌리기(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "재실행(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "기본 설정(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "끝내기(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "정보(_A)"
 
@@ -1751,19 +1751,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "0의 로그는 정의되지 않습니다"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "나머지 나누기는 정수에 대해서만 정의됩니다"
 
@@ -1771,17 +1771,17 @@ msgstr "나머지 나누기는 정수에 대해서만 정의됩니다"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "0의 제곱은 음수 지수에 대해서는 정의되지 않습니다"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ku.po b/po/ku.po
index a91dbdf..e9a8f57 100644
--- a/po/ku.po
+++ b/po/ku.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Kurdish (https://www.transifex.com/mate/teams/13566/ku/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Erdal Ronahî"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Bergeh"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Alîkarî"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Bingehîn"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Pêşketî"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Malî"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Naverok"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Ji ber bigire"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Pê veke"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Vegerîne"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Dîsa bike"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Vebijêrk"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Derkeve"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Der barê"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ku_IQ.po b/po/ku_IQ.po
index 1ff263f..c5d05fe 100644
--- a/po/ku_IQ.po
+++ b/po/ku_IQ.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Rasti K5 <[email protected]>, 2020\n"
 "Language-Team: Kurdish (Iraq) (https://www.transifex.com/mate/teams/13566/ku_IQ/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "ژمێرەری MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ژمێرەر"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "دووانی"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_بژمێر"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_بینین"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_یارمەتی"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_سەرەتایی"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_پێشکەوتوو"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_بەرنامەسازی"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_ناوەڕۆک"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_لەبەرگرتنەوە"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_هەڵبژاردەکان"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_دەرچوون"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_دەربارە"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ky.po b/po/ky.po
index cc0a2bd..5f1a679 100644
--- a/po/ky.po
+++ b/po/ky.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: 41e38594a6ab66d45dbd71e8e44a0b16_36d21e8, 2020\n"
 "Language-Team: Kyrgyz (https://www.transifex.com/mate/teams/13566/ky/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE калькулятору"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Калькулятор"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Белгисиз «%s» аргументи"
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Экилик"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Сегиздик"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Ондук"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1280,110 +1280,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Тегеректөө"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Белги"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1399,76 +1399,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Эсептелүүдө"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1520,19 +1520,19 @@ msgid "Show %d decimal _places"
 msgstr "%d ондук _разрядды көрсөтүү"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Жардам файлын ачуу оңунан чыккан жок"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1540,7 +1540,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1548,113 +1548,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Жумалиев Чыңгыз <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Калькулятор"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Режим"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Көрүнүш"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Жардам"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Жөнөкөй"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Кеңейтилген"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "Ка_ржы"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Программалоо"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Мазмундар"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Көчүрүү"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "К_оюу"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Жокко чыгаруу"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Кайтаруу"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Ырастоолор"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Чыгуу"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Программа _жөнүндө"
 
@@ -1703,19 +1703,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1723,17 +1723,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/li.po b/po/li.po
index d589e9a..4ced935 100644
--- a/po/li.po
+++ b/po/li.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Limburgian (https://www.transifex.com/mate/teams/13566/li/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "Bi_ld"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hulp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Inhaud"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiëre"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Plakke"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Óngeda_on make"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "He_rhaole"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Beèndige"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Euver"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/lt.po b/po/lt.po
index 06ac130..0a02b07 100644
--- a/po/lt.po
+++ b/po/lt.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Džiugas Grėbliūnas <[email protected]>, 2020\n"
 "Language-Team: Lithuanian (https://www.transifex.com/mate/teams/13566/lt/)\n"
@@ -588,12 +588,12 @@ msgstr ""
 " dalis. Jei norite sužinoti daugiau apie MATE ir MATE skaičiuotuvą, prašome "
 "apsilankyti projekto tinklalapyje."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE skaičiuotuvas"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Skaičiuotuvas"
 
@@ -959,7 +959,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Klaida, pasikartojimų skaičius turi būti teigiamas"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -970,7 +970,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -987,7 +987,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1007,7 +1007,7 @@ msgstr ""
 "  --g-fatal-warnings              Visi įspėjimai yra \"lemtingi\""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1017,13 +1017,13 @@ msgstr ""
 "  -s, --solve <equation>          Išspręsti duotą lygtį"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumnetui --solve yra privaloma lygtis sprendimui"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Nežinomas argumentas „%s“"
@@ -1214,12 +1214,12 @@ msgid "Boolean NOT"
 msgstr "Loginis NE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Sveikoji dalis"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Trupmeninė dalis"
 
@@ -1304,28 +1304,28 @@ msgid "Straight Line Depreciation"
 msgstr "Tiesiogiai proporcingas nusidėvėjimas"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Dvejetainis"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Aštuntainis"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Dešimtainis"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Šešioliktainis"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1336,7 +1336,7 @@ msgstr[3] "_%d vietų"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1346,103 +1346,103 @@ msgstr[2] "%d vietų"
 msgstr[3] "%d vietų"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Apvalinti"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Apatinė riba"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Viršutinė riba"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Ženklas"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Šviesos greitis"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/sek."
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Magnetinė konstanta"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Elektrinė konstanta"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Niutono gravitacijos konstanta"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Planko konstanta"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Elementarusis krūvis"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Elektrono masė"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Protono masė"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Avogadro konstanta"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1458,76 +1458,76 @@ msgid "Switch conversion units"
 msgstr "Sukeisti vertimo vienetus"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Nėra atšaukimo istorijos"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Nėra atšaukimo istorijos"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nėra sveikos reikšmės saugojimui"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Perpildymas. Mėginkite didesnį žodžio ilgį"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Nežinomas kintamasis '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Neapibrėžta funkcija '%s'"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Nežinoma konversija"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Blogai suformuota išraiška ties leksema „%s“"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Blogai suformuota išraiška"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Skaičiuojama"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Skaidymui reikalingas sveikas skaičius"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nėra tinkamos reikšmės bitų pastūmimui"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Rodoma reikšmė nėra sveikas skaičius"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1579,19 +1579,19 @@ msgid "Show %d decimal _places"
 msgstr "Rodyti %d dešimtainių _pozicijų"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nepavyko atverti žinyno failo"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE dokumentacijos komanda"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1603,7 +1603,7 @@ msgstr ""
 " Laisvosios programinės įrangos fondo; 2-osios arba (Jūsų pasirinkimu) bet "
 "kurios vėlesnės licencijos versijos sąlygomis. "
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1615,7 +1615,7 @@ msgstr ""
 "TIKSLUI garantijų. Daugiau informacijos galite rasti GNU bendrojoje "
 "viešojoje licencijoje. "
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1625,7 +1625,7 @@ msgstr ""
 "skaičiuotuvu; jeigu negavote, rašykite Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA "
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1634,17 +1634,17 @@ msgstr ""
 "Skaičiuotuvas su finansiniais bei moksliniais priedais.\n"
 "Naudojami GNU MPFR %s ir GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Apie MATE skaičiuotuvą"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Vertėjai:\n"
@@ -1659,84 +1659,84 @@ msgstr ""
 "Moo"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Skaičiuotuvas"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Režimas"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Rodymas"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Žinynas"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Paprastas"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Sudėtingesnis"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansinis"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programuojamasis"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Istorija"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Turinys"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopijuoti"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Į_dėti"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Atša_ukti"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Pakartoti"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Išvalyti istoriją"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Nustatymai"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "Iš_eiti"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Apie"
 
@@ -1786,19 +1786,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Nulio logaritmas neapibrėžtas"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Nulinio laipsnio šaknis skaičiui yra neapibrėžta"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Faktorialas apibrėžtas tik neneigiamiems realiesiems skaičiams"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Dalyba su liekana apibrėžta tik sveikiems skaičiams"
 
@@ -1806,17 +1806,17 @@ msgstr "Dalyba su liekana apibrėžta tik sveikiems skaičiams"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Nulinis laipsnis neapibrėžtas neigiamai eksponentei"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Klaidos funkcija apibrėžta tik realiesiems skaičiams"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Rymano dzeta funkcija apibrėžta tik realiesiems skaičiams ≠1"
 
diff --git a/po/lv.po b/po/lv.po
index 0a427ac..ffecab6 100644
--- a/po/lv.po
+++ b/po/lv.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: duck <[email protected]>, 2020\n"
 "Language-Team: Latvian (https://www.transifex.com/mate/teams/13566/lv/)\n"
@@ -581,12 +581,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Kalkulators"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulators"
 
@@ -951,7 +951,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Kļūda — periodu skaitam jābūt pozitīvam"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -962,7 +962,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 "  --g-fatal-warnings              Padarīt visus brīdinājumus fatālus"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1009,13 +1009,13 @@ msgstr ""
 "  -s, --solve <vienādojums>       Atrisināt doto vienādojumu"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Parametram --solve vajag izteiksmi, ko atrisināt"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Nezināms parametrs “%s”"
@@ -1206,12 +1206,12 @@ msgid "Boolean NOT"
 msgstr "Loģiskais NE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Veselā daļa"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Daļveida daļa"
 
@@ -1296,28 +1296,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineārā amortizācija"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binārs"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktāls"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimāls"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadecimāla"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1327,7 +1327,7 @@ msgstr[2] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1336,103 +1336,103 @@ msgstr[1] ""
 msgstr[2] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Apaļot"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Grīda"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Griesti"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Zīme"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1448,76 +1448,76 @@ msgid "Switch conversion units"
 msgstr "Pārslēgt konversijas vienības"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Nav darbību, ko atsaukt"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Nav atkārtošanas vēstures"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nav saprātīgas vērtības, ko saglabāt"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Pārpilde. Mēģiniet ar lielāku vārda garumu"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Nezināms mainīgais “%s”"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkcija “%s” nav definēta"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Nezināms pārveidojums"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Slikti formēta izteiksme pie marķiera “%s”"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Slikti formēta izteiksme"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Rēķina"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Vajag veselu skaitli, lai dalītu reizinātājos"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nav saprātīgas vērtības bitu bīdīšanai"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Attēlotā vērtība nav vesels skaitlis"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1569,19 +1569,19 @@ msgid "Show %d decimal _places"
 msgstr "Rādīt %d ci_parus aiz komata"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nevar atvērt palīdzības datni"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1589,7 +1589,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1597,115 +1597,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
 "  Kristaps https://launchpad.net/~retail"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulators"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Režīms"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Skats"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Palīdzība"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Vienkāršais"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "P_aplašinātais"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansiālais"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmēšanas"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Saturs"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopēt"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Izlikt"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Atsaukt"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Pāratsaukt"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Iestatījumi"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Iziet"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "P_ar"
 
@@ -1754,19 +1754,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritms no nulles ir nedefinēts"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Moduļu dalīšana ir definēta tikai veseliem skaitļiem"
 
@@ -1774,17 +1774,17 @@ msgstr "Moduļu dalīšana ir definēta tikai veseliem skaitļiem"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Nulles pakāpe nav definēta negatīviem kāpinātājiem"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/mai.po b/po/mai.po
index 4b16baf..973ecf9 100644
--- a/po/mai.po
+++ b/po/mai.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Maithili (https://www.transifex.com/mate/teams/13566/mai/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "कैलकुलेटर"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "हेक्साडेसीमल"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "भंडारन क'लेल कोनो नीक मान नहि"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "विरूपित अभिव्यक्ति"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "संगीता कुमारी ([email protected])"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "कैलकुलेटर (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "देखू (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "मद्दति (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "मौलिक (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "उन्नत (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "वित्तीय (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "विषय सूची (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "कॉपी करू (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "साटू (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "पूर्ववत् करू (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "दोहराबू (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "वरीयतासभ (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "बाहर (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "क' संबंधमे (_A)"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/mg.po b/po/mg.po
index 3f4f0be..9226170 100644
--- a/po/mg.po
+++ b/po/mg.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Malagasy (https://www.transifex.com/mate/teams/13566/mg/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Milina mpikajy"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Tsy misy sanda mitombina azo tahirizina"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Laza tsy mety"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Fankasitrahana ny mpandika teny"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Milina mpikajy"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Seho"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Toro-làlana"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Fototra"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avo lenta"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Ara-bola"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Mpiaty"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Adikao"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Apetao"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Foano"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Avereno"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Safidy manokana"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Ajanony"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Mombamomba"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/mi.po b/po/mi.po
index 46cf361..3f9e850 100644
--- a/po/mi.po
+++ b/po/mi.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Maori (https://www.transifex.com/mate/teams/13566/mi/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Titiro"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Āwhina"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Ngā kai"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Tārua"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Whakapiri"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Whakakore"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Mahi Anō"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Whakamutu"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Mo"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/mk.po b/po/mk.po
index 38501e0..2fa0160 100644
--- a/po/mk.po
+++ b/po/mk.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: exoos <[email protected]>, 2020\n"
 "Language-Team: Macedonian (https://www.transifex.com/mate/teams/13566/mk/)\n"
@@ -575,12 +575,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Калкулатор"
 
@@ -946,7 +946,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Грешка: бројот на запирки мора да е позитивен"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -957,7 +957,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -974,7 +974,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -994,7 +994,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1004,13 +1004,13 @@ msgstr ""
 "  -s, --solve <equation>          реши ја дадената равенка"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Аргумент --solve бара равенка за решавање"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Непознат аргумент „%s“"
@@ -1201,12 +1201,12 @@ msgid "Boolean NOT"
 msgstr "Булово НЕ"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Целоброен дел"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Дропкин дел"
 
@@ -1291,28 +1291,28 @@ msgid "Straight Line Depreciation"
 msgstr "Девалвација по права линија"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Бинарен"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Октален"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Децимала"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Хексадецимален"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1321,7 +1321,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1329,103 +1329,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Заокружи"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Подна функција"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Таванска функција"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Знак"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1441,76 +1441,76 @@ msgid "Switch conversion units"
 msgstr "Смени ги единиците за конверзија"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Нема историја за отповикување"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Нема историја за отповикување"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Нема вистинска вредност за складирање"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Претекување. Пробајте со поголема големина на збор"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Непозната променлива „%s“"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Функцијата „%s“ не е дефинирана"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Непозната конверзија"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Погрешен израз"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Пресметувам"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Потребен е цел број за факторизирање"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Нема разумна вредност за да се направи битово поместување"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Прикажаната вредност не е целобројна"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1562,19 +1562,19 @@ msgid "Show %d decimal _places"
 msgstr "Покажи %d децимални _места"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Не можев да ја отворам датотеката со помош"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1582,7 +1582,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1590,113 +1590,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Арангел Ангов <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Калкулатор"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Режим"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Поглед"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Помош"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Основен"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Напреден"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Финансиски"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Програмирање"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Содржина"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Копирај"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Вметни"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Врати"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Повтори"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Параметри"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "Излез"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_За"
 
@@ -1745,19 +1745,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Логаритам од нула не е дефиниран"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Модул е само дефиниран за цели броеви"
 
@@ -1765,17 +1765,17 @@ msgstr "Модул е само дефиниран за цели броеви"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Степенувањето на нула не е дефинирано за негативни експоненти"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ml.po b/po/ml.po
index d7d831a..5c590c8 100644
--- a/po/ml.po
+++ b/po/ml.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Malayalam (https://www.transifex.com/mate/teams/13566/ml/)\n"
@@ -580,12 +580,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ഗണനി"
 
@@ -956,7 +956,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "പിശക്: പീരിയഡുകളുടെ എണ്ണം പോസിറ്റീവ്"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -967,7 +967,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -984,7 +984,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1004,7 +1004,7 @@ msgstr ""
 "  --g-fatal-warnings              എല്ലാ മുന്നറിയിപ്പുകളും പ്രാധാന്യമാക്കുക"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1014,7 +1014,7 @@ msgstr ""
 "  -s, --solve <equation>          തന്നിരിക്കുന്ന സമവാക്യം പരിഹരിക്കുക"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
@@ -1022,7 +1022,7 @@ msgstr ""
 "ആവശ്യമുണ്ടു്"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "അപരിചിതമായ ആര്‍ഗ്യുമെന്റ് '%s'"
@@ -1213,12 +1213,12 @@ msgid "Boolean NOT"
 msgstr "ബൂളിയന്‍ NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "പൂര്‍ണ്ണസംഖ്യയുടെ ഭാഗം"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "ഭിന്നസംഖ്യാ ഘടകം"
 
@@ -1303,28 +1303,28 @@ msgid "Straight Line Depreciation"
 msgstr "നേര്‍രേഖാ വിലയിടിവു്"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ബൈനറി"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ഒക്റ്റല്‍"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ഡെസിമല്‍"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ഹെക്സാ ഡെസിമല്‍"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1333,7 +1333,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1341,103 +1341,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "വട്ടത്തില്‍"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "ഫ്ലോര്‍"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "സീലിങ്"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ചിഹ്നം"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1453,76 +1453,76 @@ msgid "Switch conversion units"
 msgstr "കണ്‍വേര്‍ഷന്‍ യൂണിറ്റുകള്‍ മാറ്റുക"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "ആവശ്യമില്ലാത്തവയുടെ നാള്‍വഴി ലഭ്യമല്ല"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "വീണ്ടും ചെയ്യുവാനുള്ളവയുടെ നാള്‍വഴി ലഭ്യമല്ല"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "സൂക്ഷിയ്ക്കാനായി യുക്തമായ വിലകളൊന്നുമില്ല"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "കവിഞ്ഞൊഴുകി. വലിയ വ്യാപ്തിയുള്ള വേര്‍ഡ് വ്യാപ്തി ശ്രമിക്കുക"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "വേരിയബിള്‍ '%s'അപരിചിതം"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "ഫംഗ്ഷന്‍ '%s' അപരിചിതം"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "അജ്ഞാത കണ്‍വേര്‍ഷന്‍"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "തെറ്റായ എക്സ്‌പ്രഷന്‍"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "കണക്കുകൂട്ടുന്നു"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "ഫാക്ടറൈസ് ചെയ്യുന്നതിനായി ഇന്റിജര്‍ ആവശ്യമുണ്ടു്"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "ബിറ്റ്‌വൈസ് ഷിഫ്റ്റ് നടത്താന്‍ യുക്തമായ വിലകളൊന്നുമില്ല"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "കാണിച്ച മൂല്ല്യം ഇന്റിജറല്ല"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1574,19 +1574,19 @@ msgid "Show %d decimal _places"
 msgstr "%d_ദശാംശ സ്ഥാനങ്ങള്‍ കാണിക്കു"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "സഹായ ഫയല്‍ തുറക്കാന്‍ കഴിയുന്നില്ല"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1594,7 +1594,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1602,115 +1602,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "അനി പീറ്റര്‍ <[email protected]>\n"
 "പ്രവീണ്‍ അരിമ്പ്രത്തൊടിയില്‍ <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_ഗണനി"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_കാഴ്ച"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_സഹായം"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_അടിസ്ഥാനമായ"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_സങ്കീര്‍ണ്ണമായ"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_ധനകാര്യം"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_പ്രോഗ്രാമിങ്"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_ഉളളടക്കം"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "പകര്‍ത്തുക (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ഒട്ടിയ്ക്കുക"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "വേണ്ട"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "വീണ്ടും"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "മുന്‍ഗണനകള്‍"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "പുറത്ത് കടക്കുക (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_സംബന്ധിച്ച്"
 
@@ -1759,19 +1759,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "പൂജ്യത്തിന്റെ ലോഗരിതം നിര്‍വചിച്ചിട്ടില്ല"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "മോഡുലസ് ഡിവിഷന്‍ ഇന്റിജറുകള്‍ക്കു് മാത്രമേ നിഷ്കര്‍ഷിച്ചിട്ടുള്ളൂ"
 
@@ -1779,17 +1779,17 @@ msgstr "മോഡുലസ് ഡിവിഷന്‍ ഇന്റിജറു�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "ഒരു നെഗറ്റീവ് കോംപണന്റിനു് സീറോയുടെ പവര്‍ നിഷ്കര്‍ഷിച്ചിട്ടില്ല"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/mn.po b/po/mn.po
index 3702f6b..f6ef8b6 100644
--- a/po/mn.po
+++ b/po/mn.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Zorig, 2020\n"
 "Language-Team: Mongolian (https://www.transifex.com/mate/teams/13566/mn/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Тооны машин"
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,115 +1551,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Сүхбаатарын Дөлмандах <[email protected]> \n"
 "Санлигийн Бадрал 2004, <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Харах"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Тусламж"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Агуулагдхуун"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Хуулах"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Буулгах"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Цуцлах"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Сэргээх"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Тохиргоо"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "/Файл/_Гарах"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Тухай"
 
@@ -1708,19 +1708,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1728,17 +1728,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/mr.po b/po/mr.po
index 724fb90..957ccde 100644
--- a/po/mr.po
+++ b/po/mr.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Vaibhav S Dalvi <[email protected]>, 2020\n"
 "Language-Team: Marathi (https://www.transifex.com/mate/teams/13566/mr/)\n"
@@ -582,12 +582,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "मेट गणनयंत्र"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "गणनयंत्र"
 
@@ -954,7 +954,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "त्रुटी: पिरिअड्स्ची संख्या पॉजिटिव्ह असावे"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -965,7 +965,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -982,7 +982,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1002,7 +1002,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1012,13 +1012,13 @@ msgstr ""
 "  -s, --solve <equation>          दिलेले समांतरचे निर्धारण"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "घटक --solve निवारण करीता समीकरण आवश्यक आहे"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "अपरिचीत घटक '%s'"
@@ -1209,12 +1209,12 @@ msgid "Boolean NOT"
 msgstr "बूलिअन NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "इंटिजर भाग"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "फ्रॅक्शनल भाग"
 
@@ -1299,28 +1299,28 @@ msgid "Straight Line Depreciation"
 msgstr "स्ट्रैन"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "बाइनरि"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ऑक्टल"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "दशांश "
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "हेक्साडेसीमल"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1329,7 +1329,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1337,103 +1337,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "राउंड"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "फ्लौर"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "सिलिंग"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "साइन"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1449,76 +1449,76 @@ msgid "Switch conversion units"
 msgstr "रूपांतरन युनिट्स् बदला"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "बदल रद्द कराचे इतिहास नाही"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "पूर्वावत् करा इतिहास"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "जतन करण्यासाठी योग्य मूल्य नाही"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ओव्हरफ्लो. मोठे शब्द आकार वापरून पहा"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "अपरिचीत वेरियेबल '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "फंक्शन '%s' व्याख्ययीत नाही"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "अपरिचीत रूपांतर"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "टोकन '%s' मधील सदोषीत वाक्यरचना"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "सदोषीत वाक्यरचना"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "गणन करत आहे"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "फॅक्टोराइज करण्यासाठी इंटिजर आवश्यक"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "बिटवाइज शिफ्टकरीता सेन मूल्य नाही"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "दाखवलेले मूल्य इंटिजर नाही"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1570,19 +1570,19 @@ msgid "Show %d decimal _places"
 msgstr "%d डेसिमल ठिकाण दाखवा (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "मदत फाइल उघडण्यास अपयशी"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1590,7 +1590,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1598,113 +1598,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "भाषांतराचे श्रेय Vaibhav Dalvi<[email protected]> 2014"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "गणनयंत्र (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "मोड (_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "दृश्य(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "मदत(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "मुलभूत (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "प्रगत (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "वित्तिय (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "प्रोग्रामींग (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "विषयसूची (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "प्रत बनवा (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "चिकटवा (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "बदल रद्द करा(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "पुन्हा करा (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "प्राधान्यता (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "बाहेर पडा (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "विषयी (_A)"
 
@@ -1753,19 +1753,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "झिरोचे लोगॅरिदम व्याख्ययीत नाही"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "मॉड्युलस डिव्हिजन फक्त इंटिजर्सकरीता व्याख्ययीत आहे"
 
@@ -1773,17 +1773,17 @@ msgstr "मॉड्युलस डिव्हिजन फक्त इंट
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "नकारात्मक एक्सपोनंटकरीता पावर ऑफ झिरो अव्याख्ययीत आहे"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ms.po b/po/ms.po
index 5a15c39..06ca13e 100644
--- a/po/ms.po
+++ b/po/ms.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: abuyop <[email protected]>, 2021\n"
 "Language-Team: Malay (https://www.transifex.com/mate/teams/13566/ms/)\n"
@@ -588,12 +588,12 @@ msgstr ""
 "Persekitaran Desktop MATE. Jika anda mahu ketahui lebih lanjut mengenai MATE"
 " dan Kalkulator MATE, sila lawati laman sesawang projek."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Kalkulator MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -960,7 +960,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Ralat: bilangan tempoh mesti positif"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -971,7 +971,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -988,7 +988,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1008,7 +1008,7 @@ msgstr ""
 "  --g-fatal-warnings              Jadikan semua amaran mati"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1018,13 +1018,13 @@ msgstr ""
 "-s, --solve <equation> Selesaikan persamaan diberi"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Hujah --solve memerlukan persamaan untuk diselesaikan"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argumen '%s' tidak diketahui"
@@ -1215,12 +1215,12 @@ msgid "Boolean NOT"
 msgstr "Boolean NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Komponen Interger"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Komponen Pecahan"
 
@@ -1305,28 +1305,28 @@ msgid "Straight Line Depreciation"
 msgstr "Susut Nilai Bergaris-Lurus"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binari"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadesimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1334,110 +1334,110 @@ msgstr[0] "_%d tempat"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "_%d tempat"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Bulat"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Lantai"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Siling"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Tanda"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Kelajuan Cahaya"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Pemalar magnet"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Pemalar elektrik"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Pemalar graviti Newton"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Pemalar Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Cas unsur"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Jisim elektron"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Jisim proton"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Pemalar Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1453,76 +1453,76 @@ msgid "Switch conversion units"
 msgstr "Tukar unti pertukaran"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Tiada buat asal sejarah"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Tiada buat semula sejarah"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Tiada nilai yang boleh disimpan"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Melimpah. Cuba saiz perkataan yang lebih besar"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Pembolehubah '%s' tidak diketahui"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Fungsi '%s' tidak ditakrif"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Penukaran tidak diketahui"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Ungkapan cacat pada token '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Ungkapan cacat"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Mengira"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Perlukan integer untuk difaktorkan"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Tiada nilai munasabah ke shift bitwise"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Nilai dipaparkan bukan interger"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1574,19 +1574,19 @@ msgid "Show %d decimal _places"
 msgstr "Papar %d tempat _perpuluhan"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Tidak boleh buka fail bantuan"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Pasukan Dokumentasi MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1598,7 +1598,7 @@ msgstr ""
 "telah dikeluarkan oleh Free Software Foundation; sama ada versi ke-2 lesen, "
 "atau (mengikut pilihan anda) sebarang versi terkemudian."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1610,7 +1610,7 @@ msgstr ""
 "UNTUK SESUATU TUJUAN. Sila rujuk GNU General Public LIcense untuk keterangan"
 " lanjut."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1620,7 +1620,7 @@ msgstr ""
 "MATE; jika tiada, laporkan ke Free Software Foundation, Inc., 51 Franklin "
 "Street, Fifth Floor, Boston, MA 02110-1301, USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1629,11 +1629,11 @@ msgstr ""
 "Kalkulator dengan mod kewangan dan saintifik.\n"
 "Menggunakan GNU MPFR %s dan GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Perihal Kalkulator MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1641,89 +1641,89 @@ msgstr ""
 "Hak Cipta © 1986–2010 Pengarang GCalctool\n"
 "Hak Cipta © 2011-2021 Pembangun MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Abuyop"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mod"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Lihat"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Bantuan"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Asas"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Lanjutan"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Kewangan"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Pengaturcaraan"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "Se_jarah"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Kandungan"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Salin"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Tampal"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "B_uat asal"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Buat semu_la"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Kosongkan Sejarah"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Keutamaan"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Keluar"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Perih_al"
 
@@ -1772,20 +1772,20 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logartima sifar tidak ditakrif"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Punca kuasa sifar bagi satu angka tidak ditakrif"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 "Faktorial hanya ditakrif untuk nombor bukan-negatif dan nombor sebenar"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Pembahagian modulus hanya ditakrif untuk integer"
 
@@ -1793,17 +1793,17 @@ msgstr "Pembahagian modulus hanya ditakrif untuk integer"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Kuasa sifar tidak ditakrif untuk eksponen negatif"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Fungsi ralat hanya ditakrif untuk angka sebenar"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Fungsi zeta Riemann hanya ditakrif untuk angka sebenar ≠1"
 
diff --git a/po/my.po b/po/my.po
index 4b9095d..7468ed0 100644
--- a/po/my.po
+++ b/po/my.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2019\n"
 "Language-Team: Burmese (https://www.transifex.com/mate/teams/13566/my/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ဂဏန်းတွက်စက်"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "%s ၏ဆိုလိုရင်းကိုမသိပါ"
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr "Boolen NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "ကိန်းစစ်နှင့်ဆိုင်သောအပိုင်း"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "အပိုင်းကိန်းနှင့်ဆိုင်သောအပိုင်း"
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ဒွိကိန်း"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ရှစ်လီစိတ်"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ဆယ်လီစိတ်"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "တစ်ဆယ့်ခြောက်လီစိတ်"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1280,110 +1280,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ပတ်လည်"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1399,76 +1399,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "သိမ်းဆည်းရန်သင့်တော်သောတန်ဖိုးမဟုတ်ပါ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ကျော်လွန်သွားပါပြီ, ပိုကြီးသောစာလုံးအရွယ်အစားကိုရွေးချယ်ပါ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "ကိန်းရှင် '%s' ကိုမသိပါ"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "လုပ်ဆောင်ချက် '%s' ကိုမသတ်မှတ်ရသေးပါ"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "ပုံစံမကျသောဖြည့်သွင်းချက်"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "ဆခွဲကိန်းခွဲရန်ကိန်းစစ်လိုအပ်ပါသည်"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "ကိန်းစစ်မဟုတ်သောတန်ဖိုးကိုဖော်ပြပါ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1520,19 +1520,19 @@ msgid "Show %d decimal _places"
 msgstr "_P ဒသမနောက်မှ %d  နေရာပြပါ"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "အကူအညီဖိုင်ကိုဖွင့်၍မရနှိုင်ပါ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1540,7 +1540,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1548,113 +1548,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_C ဂဏန်းတွက်စက်"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_M သုံမည့်ပုံစံ"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_H အကူအညီ"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_B အခြေခံသုံး"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_A အဆင့်မြင့်သုံး"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_F ငွေကြေးဆိုင်ရာသုံး"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_P ပရိုဂရမ်မာသုံး"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_C မာတိကာ"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr ""
 
@@ -1703,19 +1703,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1723,17 +1723,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/nb.po b/po/nb.po
index 63ebe26..4e79c29 100644
--- a/po/nb.po
+++ b/po/nb.po
@@ -16,8 +16,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: heskjestad <[email protected]>, 2021\n"
 "Language-Team: Norwegian Bokmål (https://www.transifex.com/mate/teams/13566/nb/)\n"
@@ -595,12 +595,12 @@ msgstr ""
 "skrivebordsmiljøet MATE. Besøk prosjektets hjemmeside hvis du vil vite mer "
 "om MATE og MATE-kalkulatoren."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE-kalkulator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -965,7 +965,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Feil: antall perioder må være et positivt tall"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -976,7 +976,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -993,7 +993,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1015,7 +1015,7 @@ msgstr ""
 "--g-fatal-warnings Gjør alle advarsler fatale"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1025,13 +1025,13 @@ msgstr ""
 "  -s, --solve <likning>           Løs gitt likning"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumentet --solve krever en likning å løse"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Ukjent argument «%s»"
@@ -1222,12 +1222,12 @@ msgid "Boolean NOT"
 msgstr "Boolsk IKKE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Heltallskomponent"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Brøkkomponent"
 
@@ -1312,28 +1312,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineær avskriving"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binær"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadesimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1342,7 +1342,7 @@ msgstr[1] "_%d plasser"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1350,103 +1350,103 @@ msgstr[0] "%d plass"
 msgstr[1] "%d plasser"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Rund av"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Gulv"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Tak"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Tegn"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Lysets hastighet"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Magnetisk konstant"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Elektrisk konstant"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Den Newtonske gravitasjonskonstanten"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Plancks konstant"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Elementærladningen"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Elektronmasse"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Protonmasse"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Avogadros konstant"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1462,76 +1462,76 @@ msgid "Switch conversion units"
 msgstr "Bytt konverteringsenheter"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ingen angrehistorikk"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Ingen gjenopprettingshistorikk"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Ingen fornuftige verdier å lagre"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overflyt. Prøv høyere ordstørrelse"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Ukjent variabel «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funksjon «%s» er ikke definert"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Ukjent konvertering"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Vanskapt uttrykk ved symbolet '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Feilutformet uttrykk"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Beregner"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Trenger et heltall for å faktorisere"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Ingen verdi å bruke til bitvis skift"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Vist verdi er ikke et heltall"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,Æ,Ø,Å"
 
@@ -1583,19 +1583,19 @@ msgid "Show %d decimal _places"
 msgstr "Vis %d desimal_plasser"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Kan ikke åpne hjelpfil"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE-dokumentasjonslaget"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1607,7 +1607,7 @@ msgstr ""
 "av Free Software Foundation; enten versjon 2 av lisensen, eller (hvis du "
 "ønsker det) enhver senere versjon."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1618,7 +1618,7 @@ msgstr ""
 "NOEN GARANTI, ikke engang implisitt garanti om at det er SALGBART eller "
 "PASSER ET BESTEMT FORMÅL. Se GNU General Public License for detaljer."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1628,7 +1628,7 @@ msgstr ""
 "kalkulatoren. Hvis dette ikke er tilfelle, kan du skrive til Free Software "
 "Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA"
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1637,11 +1637,11 @@ msgstr ""
 "Kalkulator med finans- og vitenskapelig modus.\n"
 "Bruker GNU MPFR %s og GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Om MATE-kalkulator"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1649,7 +1649,7 @@ msgstr ""
 "Opphavsrett © 1986–2010 GCalctool-forfatterne\n"
 "Opphavsrett © 2011-2021 MATE-utviklerne"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Send en e-post om du finner feil eller mangler i oversettelsen.\n"
@@ -1664,84 +1664,84 @@ msgstr ""
 "Av totalt 11597 tekststrenger."
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Lommeregner"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modus"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vis"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hjelp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Grunnleggende"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avansert"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansiell"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historikk"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Innhold"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopier"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Lim inn"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "A_ngre"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Gjenta"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Tøm historikk"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Innstillinger"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Avslutt"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Om"
 
@@ -1790,19 +1790,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmen for null er ikke definert"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Den nullte rota er ikke definert"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Fakultet er kun definert for ikke-negative reelle tall"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulus divisjon er kun definert for heltall"
 
@@ -1810,17 +1810,17 @@ msgstr "Modulus divisjon er kun definert for heltall"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Kvadratet av null er ikke definert for en negativ eksponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Feilfunksjonen er kun definert for reelle tall"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Riemann zeta-funksjonen er kun definert for relle tall ≠1"
 
diff --git a/po/nds.po b/po/nds.po
index de01f8f..3422ce6 100644
--- a/po/nds.po
+++ b/po/nds.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Low German (https://www.transifex.com/mate/teams/13566/nds/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1282,7 +1282,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1290,103 +1290,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1402,76 +1402,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1523,19 +1523,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1543,7 +1543,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1551,31 +1551,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
@@ -1583,84 +1583,84 @@ msgstr ""
 "  Valmantas Palikša https://launchpad.net/~walmis"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ansicht"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hölp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Inholls"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Koperen"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Infögen"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Torüggnehmen"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Wedderholen"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Eegenschapten"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Sluten"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Över"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ne.po b/po/ne.po
index fe7da2f..b9f3ad5 100644
--- a/po/ne.po
+++ b/po/ne.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: chautari <[email protected]>, 2020\n"
 "Language-Team: Nepali (https://www.transifex.com/mate/teams/13566/ne/)\n"
@@ -554,12 +554,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "गणकयन्त्र"
 
@@ -924,7 +924,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -933,7 +933,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -945,7 +945,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -958,7 +958,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -966,13 +966,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1163,12 +1163,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1253,28 +1253,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1283,7 +1283,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1291,103 +1291,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1403,76 +1403,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "भण्डारण गर्न सन्तुलित मान छैन"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "विकृत अभिव्यक्ति"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1524,19 +1524,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1544,7 +1544,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1552,115 +1552,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "pawan chitrakar <[email protected]>,Narayan Kumar Magar "
 "<[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "गणकयन्त्र"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "दृष्य"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "मद्दत"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "आधारभूत"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "उन्नत"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "आर्थिक"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "सामग्री"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "प्रतिलिपि गर्नुहोस्"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "टाँस्नुहोस्"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "पूर्वस्थितिमा फर्काउनुहोस्"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "रिडू गर्नुहोस्"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "प्राथमिकता"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "अन्त्य गर्नुहोस्"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "बारेमा"
 
@@ -1709,19 +1709,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1729,17 +1729,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/nl.po b/po/nl.po
index f0f61d3..f6fa33e 100644
--- a/po/nl.po
+++ b/po/nl.po
@@ -17,8 +17,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Pjotr <[email protected]>, 2021\n"
 "Language-Team: Dutch (https://www.transifex.com/mate/teams/13566/nl/)\n"
@@ -596,12 +596,12 @@ msgstr ""
 "werkomgeving. Als u meer wilt weten over MATE en MATE Calc, bezoek dan de "
 "webpagina van het project."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Rekenmachine"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Rekenmachine"
 
@@ -970,7 +970,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Fout: het aantal periodes moet positief zijn"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -981,7 +981,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -998,7 +998,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1018,7 +1018,7 @@ msgstr ""
 "  --g-fatal-warnings              Alle waarschuwingen fataal maken"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1028,13 +1028,13 @@ msgstr ""
 "  -s, --solve <vergelijking>          Los de opgegeven vergelijking op"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve vereist een vergelijking om op te lossen"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Onbekend argument ‘%s’"
@@ -1225,12 +1225,12 @@ msgid "Boolean NOT"
 msgstr "Booleaans NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Gehele deel"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Fractie"
 
@@ -1315,28 +1315,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineaire afschrijving"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binair"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octaal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimaal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimaal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1345,7 +1345,7 @@ msgstr[1] "_%d locaties"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1353,103 +1353,103 @@ msgstr[0] "%d locatie"
 msgstr[1] "%d locaties"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Afronden"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Bodem"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Plafond"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Teken"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Lichtsnelheid"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Magnetische constante"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Electrische constante"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Newtoniaanse zwaartekrachtconstante"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Planck-constante"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Elementaire lading"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Electronmassa"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Protonmassa"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Avogadro constant"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1465,76 +1465,76 @@ msgid "Switch conversion units"
 msgstr "Conversie-eenheid wisselen"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Herstelgeschiedenis leeg"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Geen geschiedenis om te herhalen"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Geen geldige waarde om op te slaan"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Overloop. Probeer een grotere woordlengte."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Onbekende variabele ‘%s’"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Functie ‘%s’ is niet gedefinieerd"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Onbekende conversie"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Onjuiste uitdrukking bij teken '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Ongeldige uitdrukking"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Berekenen…"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Geheel getal nodig om te kunnen ontbinden"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Waarde kan niet bitsgewijs worden verschoven"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Weergegeven waarde is niet een geheel getal"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1586,19 +1586,19 @@ msgid "Show %d decimal _places"
 msgstr "Toon %d decimale _posities"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Kan hulpbestand niet openen"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Documentatieploeg van MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1610,7 +1610,7 @@ msgstr ""
 "gepubliceerd door de Free Software Foundation; hetzij versie 2 van die "
 "licentie, of (naar uw eigen keuze) enige nieuwere versie."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1622,7 +1622,7 @@ msgstr ""
 "verkoopbaarheid of geschiktheid voor een bepaald doel. Zie de GNU General "
 "Public License voor meer bijzonderheden."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1633,7 +1633,7 @@ msgstr ""
 "Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA "
 "02110-1301 Verenigde Staten van Amerika."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1642,11 +1642,11 @@ msgstr ""
 "Rekenmachine met financiële en wetenschappelijke modi.\n"
 "Gebruikt GNU MPFR %s en GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Over MATE Rekenmachine"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1654,7 +1654,7 @@ msgstr ""
 "Auteursrecht © 1986–2010 De makers van GCalctool\n"
 "Auteursrecht © 2011-2021 MATE-ontwikkelaars"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad-bijdragers:\n"
@@ -1670,84 +1670,84 @@ msgstr ""
 "Pjotr"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Rekenmachine "
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modus"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Tonen"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hulp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Eenvoudig"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "Ge_avanceerd"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financieel"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmeren"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Geschiedenis"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "In_houd"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiëren"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Plakken"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Ongedaan maken"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Opnieuw uitvoeren"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "Geschiedenis _wissen"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Voorkeuren"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "A_fsluiten"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Info"
 
@@ -1796,19 +1796,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritme van nul is niet gedefinieerd"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "De nulde wortel van een getal is onbepaald"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Faculteit is alleen bepaald voor niet-negatieve echte getallen"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulus deling is alleen gedefinieerd voor gehele getallen"
 
@@ -1816,17 +1816,17 @@ msgstr "Modulus deling is alleen gedefinieerd voor gehele getallen"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Nul tot een negatieve macht verheffen is niet gedefinieerd"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "De foutfunctie is alleen bepaald voor echte getallen"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "De Riemann-zeta-functie is alleen bepaald voor echte getallen ≠1"
 
diff --git a/po/nn.po b/po/nn.po
index c877afd..0a4a2b4 100644
--- a/po/nn.po
+++ b/po/nn.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Andrew Rabbitt <[email protected]>, 2020\n"
 "Language-Team: Norwegian Nynorsk (https://www.transifex.com/mate/teams/13566/nn/)\n"
@@ -554,12 +554,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -924,7 +924,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -933,7 +933,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -950,7 +950,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -963,7 +963,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -971,13 +971,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Ukjent argument «%s»"
@@ -1168,12 +1168,12 @@ msgid "Boolean NOT"
 msgstr "Boolsk IKKJE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1258,28 +1258,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binær"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Desimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadesimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1288,7 +1288,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1296,103 +1296,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1408,78 +1408,78 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Inga angrehistorikk"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Inga fornuftige verdiar å lagra"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 "Kan ikkje utføra bitvisoperasjonar på tal større enn det gjeldande ordet. "
 "Prøv med ein større ordstorleik."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Ukjend variabel «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funksjonen «%s» er ikkje definert"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Ukjend omrekning"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Feilutformet uttrykk"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Kan berre faktorisera heiltal"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1531,19 +1531,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Klarte ikkje å opna hjelpefila"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE Dokumentasjonslag"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1551,7 +1551,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1559,115 +1559,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Åsmund Skjæveland <[email protected]>\n"
 "Eskild Hustvedt <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vis"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hjelp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Grunnleggjande"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avansert"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansiell"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Innhald"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopier"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Lim inn"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Angre"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Gje_r om"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Innstillingar"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Avslutt"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Om"
 
@@ -1716,19 +1716,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmen av null er ikkje definert"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1736,17 +1736,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/nso.po b/po/nso.po
index 41afcc7..5a68961 100644
--- a/po/nso.po
+++ b/po/nso.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Northern Sotho (https://www.transifex.com/mate/teams/13566/nso/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,115 +1550,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Translate.org.za <[email protected]>\n"
 "Pheledi Mathibela <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Lebelela"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Thušo"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Dikagare"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiša"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Kgomaretša"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Dirolla"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Dira gape"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Tše ratwago"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Tlogela"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Ka ga"
 
@@ -1707,19 +1707,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1727,17 +1727,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/oc.po b/po/oc.po
index 410216b..7f01f5d 100644
--- a/po/oc.po
+++ b/po/oc.po
@@ -14,8 +14,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Quentin PAGÈS, 2021\n"
 "Language-Team: Occitan (post 1500) (https://www.transifex.com/mate/teams/13566/oc/)\n"
@@ -395,9 +395,9 @@ msgid ""
 "of an ordinary annuity, to accumulate a future value, at a periodic interest"
 " rate."
 msgstr ""
-"Calcula lo nombre d'escasenças necessàrias sus una durada de rente "
-"ordinaire, per acumular un capital a tèrme, a un taus d'interès periodic "
-"donné."
+"Calcula lo nombre d'escasenças necessàrias sus una durada de renda "
+"ordinària, per acumular un capital a tèrme, a un taus d'interès periodic "
+"donat."
 
 #. Calculates the number of compounding periods necessary to increase an
 #. investment of present value pv to a future value of fv, at a fixed interest
@@ -593,18 +593,18 @@ msgstr ""
 "burèu MATE. Se volètz ne saber mai tocant MATE e MATE Calc, consultatz lo "
 "site del projècte."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadoira MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadoira"
 
 #: data/mate-calc.desktop.in:5
 msgid "Perform arithmetic, scientific or financial calculations"
-msgstr "Effectue de calculs aritmetics, scientifics o financièrs"
+msgstr "Realizar de calculs aritmetics, scientifics o financièrs"
 
 #. Translators: Search terms to find this application. Do NOT translate or
 #. localize the semicolons! The list MUST also end with a semicolon!
@@ -968,7 +968,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Error : lo nombre d'escasenças deu èsser positiu"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -977,7 +977,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -989,7 +989,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1002,7 +1002,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1010,13 +1010,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argument desconegut « %s »"
@@ -1207,12 +1207,12 @@ msgid "Boolean NOT"
 msgstr "NOT (NON) boolean"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Partida entièra"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Partida fraccionària"
 
@@ -1297,28 +1297,28 @@ msgid "Straight Line Depreciation"
 msgstr "Amortiment linear"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binari"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Exadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1327,7 +1327,7 @@ msgstr[1] "_%d lòcs"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1335,103 +1335,103 @@ msgstr[0] "%d lòc"
 msgstr[1] "%d lòcs"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1447,76 +1447,76 @@ msgid "Switch conversion units"
 msgstr "Invèrsa las unitats de conversion"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Pas cap d'istoric d'anullacion"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Pas cap d'istoric de restablir"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Pas cap de valor corrècta de memorizar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
-msgstr "Depassament de capacitat. Ensajatz amb una talha de mot mai granda"
+msgstr "Despassament de capacitat. Ensajatz amb una talha de mot mai granda"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variabla « %s » desconeguda"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "La foncion « %s » es pas definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversion desconeguda"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expression incorrècta"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calcul en cors"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Sols los nombres entièrs son factorizables"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Pas cap de valor corrècta per un decalatge bit a bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "La valor afichada es pas un entièr"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1568,19 +1568,19 @@ msgid "Show %d decimal _places"
 msgstr "Afichar %d de_cimalas"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Impossible de dobrir lo fichièr d'ajuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE Documentation Team"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1592,7 +1592,7 @@ msgstr ""
 "es publicada per la Free Software Foundation ; version 2 de la licéncia, o "
 "(se volètz) tota version seguenta."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1604,7 +1604,7 @@ msgstr ""
 "MERCANDA o D'ADEQÜACION A UN BESONH PARTICULAR. Consultatz la licéncia "
 "publica generala GNU per mai d'entresenhas."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1614,18 +1614,18 @@ msgstr ""
 "Calculadoira de MATE ; s'es pas lo cas, escrivètz a la Free Software "
 "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA"
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "A prepaus de la Calculadoira MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1633,91 +1633,91 @@ msgstr ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 Los desvolopaires de MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Yannig Marchegay (Kokoyaya) <[email protected]> & Cédric Valmary "
 "(totenoc.eu) <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "Calc_uladoira"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mòde"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Afichatge"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Aju_da"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avançat"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financièr"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programacion"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Istoric"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Ensenhador"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Pegar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Anullar"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Tornar far"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Escafar istoric"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferéncias"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Quitar"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "A _prepaus"
 
@@ -1766,19 +1766,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Lo logaritme de zèro es pas definit"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Lo modulo de la division es pas definit que sus d'entièrs"
 
@@ -1786,17 +1786,17 @@ msgstr "Lo modulo de la division es pas definit que sus d'entièrs"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "La poténcia de zèro es pas definida per d'exponents negatius"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
@@ -2552,7 +2552,7 @@ msgstr "Massa"
 
 #: src/unit-manager.c:114
 msgid "Duration"
-msgstr "Temps"
+msgstr "Durada"
 
 #: src/unit-manager.c:115
 msgid "Temperature"
diff --git a/po/or.po b/po/or.po
index e335404..93ae288 100644
--- a/po/or.po
+++ b/po/or.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Oriya (https://www.transifex.com/mate/teams/13566/or/)\n"
@@ -576,12 +576,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "କାଲକୁଲେଟର"
 
@@ -949,7 +949,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -960,7 +960,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -977,7 +977,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -997,7 +997,7 @@ msgstr ""
 "  --g-fatal-warnings              ସମସ୍ତ ଚେତାବନୀଗୁଡ଼ିକୁ ମାରାତ୍ମକ କରନ୍ତୁ"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1005,13 +1005,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "ସ୍ୱତନ୍ତ୍ରଚର --solve କୁ ସମାଧାନ କରିବା ପାଇଁ ଗୋଟିଏ ସମୀକରଣ ଆବଶ୍ୟକ କରିଥାଏ"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "ଅଜଣା ସ୍ୱତନ୍ତ୍ରଚର '%s'"
@@ -1202,12 +1202,12 @@ msgid "Boolean NOT"
 msgstr "ବୁଲିଆନ NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "ଗଣନ ସଂଖ୍ୟା ଉପାଦାନ"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "କାର୍ଯ୍ୟରତ ଉପାଦାନ"
 
@@ -1292,28 +1292,28 @@ msgid "Straight Line Depreciation"
 msgstr "ସରଳ-ରେଖା ବିକଳନ"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ଦ୍ବିମିକ"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ଅଷ୍ଟକ"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ଦଶମିକ"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ଷୋହଳମିକ ଅଙ୍କ"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1322,7 +1322,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1330,103 +1330,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ଗୋଲ"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "ମେଜିଆ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "ଛାତ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ହସ୍ତାକ୍ଷର କରନ୍ତୁ"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1442,76 +1442,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "କୌଣସି ପଦକ୍ଷେପ ବାତିଲ ଇତିହାସ ନାହିଁ"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "କୌଣସି ପଦକ୍ଷେପ ବାତିଲ ଇତିହାସ ନାହିଁ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "ସଞ୍ଚୟ ପାଇଁ କୌଣସି ଯୁକ୍ତିଯୁକ୍ତ ମୂଲ୍ଯ ନାହିଁ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ଅତିପ୍ରବାହ। ଗୋଟିଏ ବୃହତର ଶବ୍ଦ ଆକାର ଚେଷ୍ଟାକରନ୍ତୁ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "ଅଜଣା ପ୍ରାଚଳ '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "ଫଳନ '%s' କୁ ବ୍ୟାଖ୍ୟା କରାଯାଇନାହିଁ"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "ଅଜଣା ରୂପାନ୍ତରଣ"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "ବିକୃତ ଅଭିବ୍ଯକ୍ତି"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "ବିଭକ୍ତ କରିବା ପାଇଁ ଗୋଟିଏ ଗଣନ ସଂଖ୍ୟା ଆବଶ୍ୟକ"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "bitwise shift କରିବା ପାଇଁ କୌଣସି ଯୁକ୍ତିଯୁକ୍ତ ମୂଲ୍ଯ ନାହିଁ"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "ପ୍ରଦର୍ଶିତ ମୂଲ୍ଯଟି ଗୋଟିଏ ଗଣନ ସଂଖ୍ୟା ନୁହଁ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1563,19 +1563,19 @@ msgid "Show %d decimal _places"
 msgstr "%d ଦଶମିକ ସ୍ଥାନଗୁଡିକୁ ଦର୍ଶାନ୍ତୁ (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ସହାୟତା ଫାଇଲ ଖୋଲିବାରେ ଅସମର୍ଥ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1583,7 +1583,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1591,113 +1591,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "ଶୁଭ୍ରାଂଶୁ ବେହେରା <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "କାଲ୍କୁଲେଟର (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "ଧାରା (_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "ଦ୍ରୁଶ୍ଯ (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ସହାୟତା (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "ମୌଳିକ (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "ଉନ୍ନତ (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "ଆର୍ଥିକ (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "କାର୍ଯ୍ୟକ୍ରମ (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "ସୂଚୀପତ୍ର (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "ନକଲ କରନ୍ତୁ (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ଲଗାନ୍ତୁ (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "ପ୍ରତିକାର କରନ୍ତୁ (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "ପୁନର୍ବାର କରନ୍ତୁ (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "ପସନ୍ଦ (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "ବିଦାୟ ନିଅନ୍ତୁ (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "ବିବରଣୀ (_A)"
 
@@ -1746,19 +1746,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1766,17 +1766,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/pa.po b/po/pa.po
index 8dd3999..d23c4b3 100644
--- a/po/pa.po
+++ b/po/pa.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Panjabi (Punjabi) (https://www.transifex.com/mate/teams/13566/pa/)\n"
@@ -578,12 +578,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ਕੈਲਕੂਲੇਟਰ"
 
@@ -950,7 +950,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "ਗਲਤੀ: ਅੰਤਰਾਲ ਦੀ ਗਿਣਤੀ ਰਿਣਾਤਮਕ ਹੋਣੀ ਚਾਹੀਦੀ ਹੈ"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -961,7 +961,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -978,7 +978,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -998,7 +998,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1008,13 +1008,13 @@ msgstr ""
 "  -s, --solve <equation>          Solve the given equation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve requires an equation to solve"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "ਅਣਜਾਣ ਆਰਗੂਮੈਂਟ '%s'"
@@ -1205,12 +1205,12 @@ msgid "Boolean NOT"
 msgstr "ਬੁਲੀਅਨ NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "ਪੂਰਨ ਅੰਕ ਵਾਲਾ ਹਿੱਸਾ"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "ਗੁਣਨਖੰਡ ਭਾਗ"
 
@@ -1295,28 +1295,28 @@ msgid "Straight Line Depreciation"
 msgstr "ਸਰਲ-ਰੇਖੀ ਕਮੀ"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ਬਾਈਨਰੀ"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ਉਕਟਿਲ"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ਦਸ਼ਮਲਵ"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ਹੈਕਸਾ-ਡੇਸੀਮਲ"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1325,7 +1325,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1333,103 +1333,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ਰਾਊਂਡ"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "ਫਲੋਰ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "ਸਿਲਿੰਗ"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ਸਾਈਨ"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1445,76 +1445,76 @@ msgid "Switch conversion units"
 msgstr "ਬਦਲਣ ਯੂਨਿਟਾਂ ਪਲਟਾਓ"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "ਕੋਈ ਵਾਪਸੀ ਅਤੀਤ ਨਹੀਂ"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "ਕੋਈ ਮੁੜ-ਵਾਪਸੀ ਅਤੀਤ ਨਹੀਂ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "ਸੰਭਾਲਣ ਲਈ sane ਮੁੱਲ ਨਹੀਂ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ਸੀਮਾ ਤੋਂ ਵੱਧ ਗਿਆ। ਵੱਡਾ ਸ਼ਬਦ ਆਕਾਰ ਵਰਤੋਂ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "ਅਣਜਾਣ ਵੇਰੀਬਲ '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "ਫੰਕਸ਼ਨ '%s' ਦਿੱਤਾ ਨਹੀਂ"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "ਅਣਜਾਣ ਬਦਲਾਅ"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "'%s' ਟੋਕਨ ਉੱਤੇ ਨਿਕਾਰਾ ਸਮੀਕਰਨ"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "ਖਰਾਬ ਸਮੀਕਰਨ"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "ਗਿਣਤੀ ਕੀਤੀ ਜਾ ਰਹੀ ਹੈ"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "ਗੁਣਨਖੰਡ ਬਣਾਉਣ ਲਈ ਪੂਰਨ ਅੰਕ ਚਾਹੀਦਾ ਹੈ"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "bitwise shift ਲਈ sane ਮੁੱਲ ਨਹੀਂ"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "ਵੇਖਾਇਆ ਮੁੱਲ ਪੂਰਨ ਅੰਕ ਨਹੀਂ ਹੈ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1566,19 +1566,19 @@ msgid "Show %d decimal _places"
 msgstr "%d ਦਸ਼ਮਲਵ ਅੰਕਾਂ ਤੱਕ ਵੇਖੋ(_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ਮੱਦਦ ਫਾਇਲ ਖੋਲ੍ਹਣ ਲਈ ਅਸਮਰੱਥ"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "ਸਨ ਮਾਈਕਰੋਸਿਸਟਮ"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1586,7 +1586,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1594,31 +1594,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "ਜਸਵਿੰਦਰ ਸਿੰਘ ਫੂਲੇਵਾਲਾ ੨੦੦੪\n"
@@ -1627,84 +1627,84 @@ msgstr ""
 "http://www.satluj.com"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ਕੈਲਕੂਲੇਟਰ(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "ਮੋਡ(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "ਵੇਖੋ(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ਮੱਦਦ(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "ਮੁੱਢਲਾ(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "ਤਕਨੀਕੀ(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "ਵਿੱਤੀ(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "ਪਰੋਗਾਰਮਿੰਗ(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "ਸਮੱਗਰੀ(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "ਕਾਪੀ ਕਰੋ(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "ਚੇਪੋ(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "ਵਾਪਿਸ(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "ਪਰਤਾਉ(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "ਮੇਰੀ ਪਸੰਦ(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "ਬਾਹਰ(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "ਇਸ ਬਾਰੇ(_A)"
 
@@ -1753,19 +1753,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "ਸਿਫ਼ਰ ਦਾ ਲਾਗਰਿਥਮ ਸੰਭਵ ਨਹੀਂ"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "ਪੂਰਨ ਅੰਕਾਂ ਲਈ ਹੀ ਮੋਡੁਲੁਸ ਭਾਗ ਕੀਤੀ ਜਾ ਸਕਦੀ ਹੈ"
 
@@ -1773,17 +1773,17 @@ msgstr "ਪੂਰਨ ਅੰਕਾਂ ਲਈ ਹੀ ਮੋਡੁਲੁਸ ਭਾ�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "ਰਿਣਾਤਮਕ ਭਾਗ ਲਈ ਸਿਫ਼ਰ ਦੀ ਘਾਤ ਸੰਭਵ ਨਹੀਂ ਹੈ"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/pl.po b/po/pl.po
index dd6e24d..2d40308 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -18,8 +18,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: No Ne, 2021\n"
 "Language-Team: Polish (https://www.transifex.com/mate/teams/13566/pl/)\n"
@@ -594,12 +594,12 @@ msgstr ""
 "Desktop. Jeśli chcesz dowiedzieć się więcej o MATE i Kalkulatorze MATE, "
 "odwiedź stronę główną projektu."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Kalkulator MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -966,7 +966,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Błąd: liczba okresów musi być dodatnia"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -977,7 +977,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -994,7 +994,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1014,7 +1014,7 @@ msgstr ""
 "  --g-fatal-warnings              Wszystkie ostrzeżenia są krytyczne"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1024,13 +1024,13 @@ msgstr ""
 "  -s, --solve <równanie>          Rozwiązuje podane równanie"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Parametr --solve wymaga równania do rozwiązania"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Nieznany parametr \"%s\""
@@ -1221,12 +1221,12 @@ msgid "Boolean NOT"
 msgstr "Zmienna NIE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Część całkowita"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Część ułamkowa"
 
@@ -1311,28 +1311,28 @@ msgid "Straight Line Depreciation"
 msgstr "Amortyzacja liniowa"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binarnie"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktalnie"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Dziesiętnie"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadecymalnie"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1343,7 +1343,7 @@ msgstr[3] "_%d miejsc"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1353,103 +1353,103 @@ msgstr[2] "%d miejsc"
 msgstr[3] "%d miejsc"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Zaokrągla"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Podłoga"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Sufit"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Signum"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Prędkość Światła"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Stała magnetyczna"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Stała elektryczna"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Newtonowska stała grawitacji"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Stała Plancka"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Ładunek elementarny"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Masa elektronowa"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Masa protonowa"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Stała Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1465,76 +1465,76 @@ msgid "Switch conversion units"
 msgstr "Przełącza jednostki konwersji"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Brak historii cofania"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Brak historii ponawiania"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Brak poprawnej wartości do przechowania"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Przepełnienie. Proszę spróbować większego słowa maszynowego"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Nieznana zmienna \"%s\""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Nie określono funkcji \"%s\""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Nieznana konwersja"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Nieprawidłowa forma wyrażenia w tokenie \"%s\""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Nieprawidłowa forma wyrażenia"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Obliczanie"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Do rozłożenia na czynniki potrzebna jest liczba całkowita"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Brak poprawnej wartości dla przesunięcia bitowego"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Wyświetlana wartość nie jest całkowita"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1586,19 +1586,19 @@ msgid "Show %d decimal _places"
 msgstr "Wyświetlanie %d _miejsc po przecinku"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nie można otworzyć pliku pomocy"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Zespół dokumentacji MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1610,7 +1610,7 @@ msgstr ""
 "przez Fundację Wolnego Oprogramowania - według wersji drugiej tej Licencji "
 "lub którejś z późniejszych wersji. "
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1623,7 +1623,7 @@ msgstr ""
 "bliższych informacji należy zapoznać się z Powszechną Licencją Publiczną "
 "GNU. "
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1634,7 +1634,7 @@ msgstr ""
 "- proszę napisać do Free Software Foundation, Inc., 51 Franklin Street, "
 "Fifth Floor, Boston, MA 02110-1301 USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1643,11 +1643,11 @@ msgstr ""
 "Kalkulator z trybami finansowymi i naukowymi.\n"
 "Używa GNU MPFR %s oraz GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "O Kalkulatorze MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1655,7 +1655,7 @@ msgstr ""
 "Prawa autorskie © 1986–2010 autorzy GCalctool\n"
 "Prawa autorskie © 2011-2021 programiści MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Tłumacze środowiska MATE, 2014-2018\n"
@@ -1669,84 +1669,84 @@ msgstr ""
 "Aviary.pl, 2007-2010"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Tryb"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Widok"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "P_omoc"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Podstawowy"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Zaawansowany"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansowy"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "P_rogramowanie"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historia"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Spis treści"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "S_kopiuj"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Wk_lej"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Cofnij"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ponów"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Wyczyść historię"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "P_referencje"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Zakończ"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_O programie"
 
@@ -1795,19 +1795,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logarytm zera jest nieokreślony"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Zerowy pierwiastek liczby jest nieokreślony"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Silnia jest określona tylko dla nieujemnych liczb rzeczywistych"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Dzielenie modulo jest określone tylko dla liczb całkowitych"
 
@@ -1815,17 +1815,17 @@ msgstr "Dzielenie modulo jest określone tylko dla liczb całkowitych"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Moc zera jest nieokreślona dla ujemnego potęgowania"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Funkcja błędu jest określona tylko dla liczb rzeczywistych"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 "Funkcja dzeta Riemanna jest określona tylko dla liczb rzeczywistych ≠1"
diff --git a/po/pms.po b/po/pms.po
index 23a508c..995518a 100644
--- a/po/pms.po
+++ b/po/pms.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Randy Ichinose <[email protected]>, 2020\n"
 "Language-Team: Piemontese (https://www.transifex.com/mate/teams/13566/pms/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calcolatris"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vista"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Agiut"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copia"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Seurte"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Al rësgard"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ps.po b/po/ps.po
index c9deacf..3dc0289 100644
--- a/po/ps.po
+++ b/po/ps.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Pushto (https://www.transifex.com/mate/teams/13566/ps/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,115 +1550,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Saif Khan <[email protected]>Pathanisation project "
 "<[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "ليد_"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "مرسته_"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "منځپانګې_"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "لمېسل_"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "سرېښل_"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "ناکړ_"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "بياکړ_"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "غوراوي_"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "بندول_"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "په اړه_"
 
@@ -1707,19 +1707,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1727,17 +1727,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/pt.po b/po/pt.po
index 75cc3b2..4f07a7e 100644
--- a/po/pt.po
+++ b/po/pt.po
@@ -19,8 +19,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Guilherme Campos <[email protected]>, 2020\n"
 "Language-Team: Portuguese (https://www.transifex.com/mate/teams/13566/pt/)\n"
@@ -593,12 +593,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -966,7 +966,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Erro: o número de períodos deve ser positivo"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -977,7 +977,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -994,7 +994,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1014,7 +1014,7 @@ msgstr ""
 "  --g-fatal-warnings              Tornar todos os avisos em erros fatais"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1024,13 +1024,13 @@ msgstr ""
 "  -s, --solve <equação>           Resolver a equação indicada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "O argumento --solve requer uma equação a resolver"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argumento '%s' desconhecido"
@@ -1221,12 +1221,12 @@ msgid "Boolean NOT"
 msgstr "NOT boleano"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Porção Inteira"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Porção Fracionária"
 
@@ -1311,28 +1311,28 @@ msgid "Straight Line Depreciation"
 msgstr "Amortização Constante"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binário"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octogonal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1341,7 +1341,7 @@ msgstr[1] "_%d locais"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1349,103 +1349,103 @@ msgstr[0] "%d local"
 msgstr[1] "%d locais"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arredondar"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Inteiro anterior"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Inteiro Seguinte"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Sinal"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Velocidade da Luz"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Constante Magnética"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Constante Eléctrica"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1461,76 +1461,76 @@ msgid "Switch conversion units"
 msgstr "Alterar as unidades de conversão"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Nenhum histórico de desfazer"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Nenhum histórico de refazer"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nenhum valor lógico a armazenar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Extravasou. Tente um tamanho de palavra maior"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variável desconhecida '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "A função '%s' não está definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversão desconhecida"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Expressão malformada no ponto '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expressão mal-formada"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "A Calcular"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "É necessário um inteiro para fatorizar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nenhum valor lógico para fazer deslocamento de bits"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "O valor apresentado não é um inteiro"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1582,19 +1582,19 @@ msgid "Show %d decimal _places"
 msgstr "Mostrar %d _casas decimais"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Incapaz de abrir o ficheiro de ajuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Equipa de Documentação do MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1602,7 +1602,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1610,113 +1610,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Hugo Carvalho <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modo"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ver"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "A_juda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Básico"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avançado"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financeiro"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programação"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Histórico"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Conteúdo"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Co_lar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "An_ular"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refazer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Limpar Histórico"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferências"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Sair"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Sobre"
 
@@ -1765,19 +1765,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "O logaritmo de zero é indefinido"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "O resto da divisão apenas está definido para inteiros"
 
@@ -1785,17 +1785,17 @@ msgstr "O resto da divisão apenas está definido para inteiros"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "A potência de zero é indefinida num expoente negativo"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/pt_BR.po b/po/pt_BR.po
index 5808409..4d15fba 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -24,8 +24,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: LemFre, 2021\n"
 "Language-Team: Portuguese (Brazil) (https://www.transifex.com/mate/teams/13566/pt_BR/)\n"
@@ -602,12 +602,12 @@ msgstr ""
 "Environment. Se você quiser saber mais sobre o MATE e o MATE Calc, visite a "
 "página inicial do projeto.."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculadora do MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -975,7 +975,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Erro: o número de períodos deve ser positivo"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -986,7 +986,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -1003,7 +1003,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1023,7 +1023,7 @@ msgstr ""
 "  --g-fatal-warnings              Torna todos os avisos fatais"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1033,13 +1033,13 @@ msgstr ""
 "  -s, --solve <equation>           Resolve a equação dada"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "O argumento --solve requer uma equação para ser resolvida"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "O argumento \"%s\" é desconhecido"
@@ -1230,12 +1230,12 @@ msgid "Boolean NOT"
 msgstr "NÃO booleano (NOT)"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Porção inteira"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Porção fracionária"
 
@@ -1320,28 +1320,28 @@ msgid "Straight Line Depreciation"
 msgstr "Depreciação linear"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binário"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1350,7 +1350,7 @@ msgstr[1] "_%d casas"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1358,103 +1358,103 @@ msgstr[0] "%d casas"
 msgstr[1] "%d casas"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Arredondar"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Piso"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Teto"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Sinal"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Velocidade da luz"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Constante magnética"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Constante elétrica"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Constante newtoniana de gravitação"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Constante de Planck"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Custo elementar"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Massa eletron"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Massa Proton"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Constante de Avogadro"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1470,76 +1470,76 @@ msgid "Switch conversion units"
 msgstr "Mudar unidade de conversão"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Sem histórico para desfazer"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Sem histórico para refazer"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Não há um valor razoável para armazenar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Estouro de capacidade. Tente um tamanho de palavra maior"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "A variável \"%s\" é desconhecida"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "A função \"%s\" não está definida"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversão desconhecida"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Expressão mal formada no token \"%s\""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expressão mal formada"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Calculando"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "É necessário um valor inteiro para fatorar"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Não há um valor razoável para alternar bit a bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Valor exibido não é um inteiro"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1591,19 +1591,19 @@ msgid "Show %d decimal _places"
 msgstr "Mostrar %d _casas decimais"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Não foi possível abrir arquivo de ajuda"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Equipe de Documentação do MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1611,7 +1611,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1619,31 +1619,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Sobre a MATE Calculadora "
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Equipe de tradução no Transifex:\n"
@@ -1669,84 +1669,84 @@ msgstr ""
 "vitorgatti https://www.transifex.com/accounts/profile/vitorgatti"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modo"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Exibir"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ajuda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Básica"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avançada"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financeira"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programável"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "S_umário"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "C_olar"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Desfa_zer"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refazer"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferências"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Sair"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Sobre"
 
@@ -1799,19 +1799,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "O logaritmo de zero não é definido"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "O resto da divisão é definido apenas para inteiros"
 
@@ -1819,17 +1819,17 @@ msgstr "O resto da divisão é definido apenas para inteiros"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "A potência de zero é indefinida para um expoente negativo"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ro.po b/po/ro.po
index 6a315fd..9c686d1 100644
--- a/po/ro.po
+++ b/po/ro.po
@@ -14,8 +14,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Daniel <[email protected]>, 2020\n"
 "Language-Team: Romanian (https://www.transifex.com/mate/teams/13566/ro/)\n"
@@ -588,12 +588,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Calculator MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -958,7 +958,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Eroare: numărul perioadelor trebuie să fie pozitiv"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -969,7 +969,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -986,7 +986,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1006,7 +1006,7 @@ msgstr ""
 "  --g-fatal-warnings              Consideră toate avertismentele fatale"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1016,13 +1016,13 @@ msgstr ""
 "  -s, --solve <ecuație>           Rezolvă ecuația dată"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumentul --solve necesită o ecuație de rezolvat"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Argument necunoscut „%s”"
@@ -1213,12 +1213,12 @@ msgid "Boolean NOT"
 msgstr "NU logic"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Partea întreagă"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Partea fracționară"
 
@@ -1303,28 +1303,28 @@ msgid "Straight Line Depreciation"
 msgstr "Amortizare în linie dreaptă"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binar"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Octal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Zecimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexazecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1334,7 +1334,7 @@ msgstr[2] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1343,103 +1343,103 @@ msgstr[1] ""
 msgstr[2] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Rotunjire"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Parte întreagă inferioară"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Parte întreagă superioară"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Semn"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1455,76 +1455,76 @@ msgid "Switch conversion units"
 msgstr "Schimbare unități de conversie"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Nu există istoric pentru anulări"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Nu există istoric pentru refaceri"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nu există o valoare validă de stocat"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Depășire. Încercați cu o lungime mai mare a cuvântului"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Variabilă necunoscută „%s”"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funcția „%s” nu este definită"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Conversie necunoscută"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Expresie de formă greșită la simbolul „%s”"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Expresie eronată"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Se calculează"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Este nevoie de un întreg pentru factorizare"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nu este valoare bună pentru deplasare binară"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Valoarea afișată nu este un întreg"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1576,19 +1576,19 @@ msgid "Show %d decimal _places"
 msgstr "Arată %d cifre du_pă virgulă"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nu s-a putut deschide fișierul de ajutor"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1596,7 +1596,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1604,113 +1604,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Daniel Alămiță <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mod"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vizualizare"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ajutor"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Standard"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avansat"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financiar"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programare"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Conținut"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copiază"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Lipește"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Anulea_ză"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Refă"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferințe"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Închide"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Despre"
 
@@ -1759,19 +1759,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmul lui zero nu este definit"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Împărțirea modulo este definită doar pentru întregi"
 
@@ -1779,17 +1779,17 @@ msgstr "Împărțirea modulo este definită doar pentru întregi"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Puterea lui zero nu este definită pentru exponenți negativi"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ru.po b/po/ru.po
index cef59a7..25e41a7 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -22,8 +22,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Russian (https://www.transifex.com/mate/teams/13566/ru/)\n"
@@ -597,12 +597,12 @@ msgstr ""
 " Если вы хотите узнать больше о MATE и Калькуляторе MATE, пожалуйста, "
 "посетите домашнюю страницу проекта. "
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Калькулятор MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Калькулятор"
 
@@ -967,7 +967,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Ошибка: количество периодов, должно быть положительным"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -978,7 +978,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -995,7 +995,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1015,7 +1015,7 @@ msgstr ""
 "  --g-fatal-warnings              Сделать все предупреждения фатальными"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1025,13 +1025,13 @@ msgstr ""
 "  -s, --solve <выражение>          Вычислить заданное выражение"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Аргументу --solve требуется выражение  для вычисления"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Неизвестный аргумент «%s»"
@@ -1222,12 +1222,12 @@ msgid "Boolean NOT"
 msgstr "Логическое побитовое НЕ"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Целая часть"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Дробная часть"
 
@@ -1312,28 +1312,28 @@ msgid "Straight Line Depreciation"
 msgstr "Линейная амортизация"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Двоичная"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Восьмеричная"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Десятичная"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Шестнадцатиричная"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1344,7 +1344,7 @@ msgstr[3] "_%d разрядов"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1354,103 +1354,103 @@ msgstr[2] "%d разрядов"
 msgstr[3] "%d разрядов"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Округлить"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Округление в большую сторону"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Округление в меньшую сторону"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Знак"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Скорость света"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299 792 458 м/с"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Магнитная постоянная"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ Н/А²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Электрическая постоянная"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² с⁴A²/м³кг"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Гравитационная постоянная"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ м³/(с²кг)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Постоянная Планка"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ м²кг/с"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Элементарный электрический заряд"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,6021766208(98)×10⁻¹⁹ Кл"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Масса электрона"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ кг"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Масса протона"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ кг"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Число Авогадро"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ моль⁻¹"
 
@@ -1466,76 +1466,76 @@ msgid "Switch conversion units"
 msgstr "Поменять местами конвертируемые единицы"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Нет истории отмены изменений"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Нет истории отмены изменений"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Отсутствует разумное значение для сохранения"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Переполнение. Попробуйте установить большее значение размера слова"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Неизвестная переменная «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Функция «%s» не определена"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Неизвестное преобразование"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Некорректное выражение: лексема «%s»"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Некорректное выражение"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Вычисление"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Для разложения на простые множители необходимо целое число"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Отсутствует разумное значение для побитового сдвига"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Значение не является целым числом"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1587,19 +1587,19 @@ msgid "Show %d decimal _places"
 msgstr "Показывать %d десятичных _разрядов"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Не удалось открыть файл справки"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Команда документирования MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1611,7 +1611,7 @@ msgstr ""
 "License, опубликованной Фондом свободного программного обеспечения; либо "
 "версии 2 этой лицензии, либо (по вашему выбору) любой более поздней версии."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1624,7 +1624,7 @@ msgstr ""
 "ЦЕННОСТИ И ПРИГОДНОСТИ ДЛЯ КОНКРЕТНОЙ ЦЕЛИ. Для получения дополнительных "
 "сведений обратитесь к лицензии GNU General Public License."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1635,24 +1635,24 @@ msgstr ""
 "Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  "
 "02110-1301 USA."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "О приложении Калькулятор MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Александр Сапрыкин <[email protected]>\n"
@@ -1688,84 +1688,84 @@ msgstr ""
 "Evolve32 <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Калькулятор"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Режим"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Вид"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Помощь"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Простой"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Расширенный"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Финансовый"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "Пр_ограммирование"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Содержание"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Копировать"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Вст_авить"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Отменить"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Ве_рнуть"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Н_астройка"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Выход"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Об апплете"
 
@@ -1819,19 +1819,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Логарифм нуля не определён"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Деление по модулю определено только для целых чисел"
 
@@ -1839,19 +1839,19 @@ msgstr "Деление по модулю определено только дл�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 "Функция возведения в степень нуля не определена для отрицательных "
 "показателей степени"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/rw.po b/po/rw.po
index 3694c75..b961d6d 100644
--- a/po/rw.po
+++ b/po/rw.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Kinyarwanda (https://www.transifex.com/mate/teams/13566/rw/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr ""
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr ""
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr ""
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr ""
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr ""
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr ""
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr ""
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr ""
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/si.po b/po/si.po
index 1fe9844..e2e0f4a 100644
--- a/po/si.po
+++ b/po/si.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Sinhala (https://www.transifex.com/mate/teams/13566/si/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ගණකය"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "'%s'අඥාත විස්තාරය"
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "පෙරසේ ඉතිහාසයක් නොමැත "
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "උදව් ගොනුව විවෘත කල නොහැක"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "පරිවර්තන ස්තුතිය"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "ගණනය (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "දසුන (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "උදව් (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "සාමාන්‍ය (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "උසස් (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "මූල්‍යමය (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "ක්‍රමලේඛණය (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "අන්තර්ගත (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "පිටපත් කරන්න (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "අලවන්න (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "අහෝසි (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "යළි කරන්න (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "අභිප්‍රේත (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "ඉවත් වන්න (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "සම්බන්ධව (_A)"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/sk.po b/po/sk.po
index 56f7cbc..33ec1ba 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -16,8 +16,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Slovak (https://www.transifex.com/mate/teams/13566/sk/)\n"
@@ -584,12 +584,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE kalkulačka"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulačka"
 
@@ -956,7 +956,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Chyba: počet období musí byť kladný"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -967,7 +967,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -984,7 +984,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1004,7 +1004,7 @@ msgstr ""
 "  --g-fatal-warnings              Všetky varovania budú kritické"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1014,13 +1014,13 @@ msgstr ""
 "  -s, --solve <rovnica>           Vyrieši zadanú rovnicu"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Parameter --solve vyžaduje rovnicu, ktorá sa má vyriešiť"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Neznámy parameter „%s“"
@@ -1211,12 +1211,12 @@ msgid "Boolean NOT"
 msgstr "Logická negácia NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Celočíselná časť"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Desatinná časť"
 
@@ -1301,28 +1301,28 @@ msgid "Straight Line Depreciation"
 msgstr "Lineárna amortizácia"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "dvojkovú"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "osmičkovú"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "desiatkovú"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "šesťnástkovú"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1333,7 +1333,7 @@ msgstr[3] "_%d miest"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1343,103 +1343,103 @@ msgstr[2] "%d miest"
 msgstr[3] "%d miest"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Zaokrúhlenie"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Dolná celočíselná časť"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Horná celočíselná časť"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Znamienko"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1455,76 +1455,76 @@ msgid "Switch conversion units"
 msgstr "Vymeniť jednotky prevodu"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Žiadna história spätných zmien"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Žiadna história dopredných zmien"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nie je rozumná hodnota na uloženie"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Pretečenie. Skúste väčšiu veľkosť slova"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Neznáma premenná „%s“"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkcia „%s“ nie je definovaná"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Neznámy prevod"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Chybný výraz v symbole „%s“"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Nesprávny výraz"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Počítanie"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Pre rozklad na súčin prvočísel je potrebné celé číslo"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nezmyselná hodnota pre bitový posun"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Zobrazená hodnota nie je celé číslo"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1576,19 +1576,19 @@ msgid "Show %d decimal _places"
 msgstr "Zobraziť %d _desatinných miest"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Nepodarilo sa otvoriť súbor pomocníka"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE Dokumentačný projekt"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1596,7 +1596,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1604,31 +1604,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Stanislav Višňovský\n"
@@ -1638,84 +1638,84 @@ msgstr ""
 "Ján Ďanovský <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulačka"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Režim"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Zobraziť"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Nápoveda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Základný"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Rozšírený"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finančný"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programátorský"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Pomocník"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopírovať"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Vložiť"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Vrátiť"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Znova vykonať"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Nastavenia"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Ukončiť"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "O progr_ame"
 
@@ -1764,19 +1764,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmus nuly nie je definovaný"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Zvyšok po delení je definovaný len pre celé čísla"
 
@@ -1784,17 +1784,17 @@ msgstr "Zvyšok po delení je definovaný len pre celé čísla"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Mocnina nuly nie je definovaná pre záporný exponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/sl.po b/po/sl.po
index b844cbb..2d81c1f 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -14,8 +14,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Damir Jerovšek <[email protected]>, 2020\n"
 "Language-Team: Slovenian (https://www.transifex.com/mate/teams/13566/sl/)\n"
@@ -587,12 +587,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Računalo MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Računalo"
 
@@ -959,7 +959,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Napaka: število obdobij mora biti določeno s pozitivno vrednostjo"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -970,7 +970,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -987,7 +987,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1007,7 +1007,7 @@ msgstr ""
 "  --g-fatal-warnings Določi vsa opozorila kot ključna"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1017,13 +1017,13 @@ msgstr ""
 "  -s, --solve <equation> Reši podano enačbo"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument --solve zahteva tudi zapis enačbe"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Neznan argument '%s'"
@@ -1214,12 +1214,12 @@ msgid "Boolean NOT"
 msgstr "Logični NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Celoštevilčna enota"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Enota ulomka"
 
@@ -1304,28 +1304,28 @@ msgid "Straight Line Depreciation"
 msgstr "Znižanje ocene ravne črte"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Dvojiške"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Osmiške"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimalne"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Šestnajstiške"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1336,7 +1336,7 @@ msgstr[3] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1346,103 +1346,103 @@ msgstr[2] ""
 msgstr[3] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Najbližje celo število števila x"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Največje celo število, ki je manjše od števila x"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Najmanjše celo število, ki ni manjše od števila x"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Predznak števila x"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1458,76 +1458,76 @@ msgid "Switch conversion units"
 msgstr "Preklopi enote pretvarjanja"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ni zgodovine razveljavitev"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Ni zgodovine razveljavitve"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Ni razumne vrednosti za shranjevanje"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Prekoračitev. Poskusite z večjo besedo"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Neznana spremenljivka '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkcija '%s' ni določena"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Neznana pretvorba"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Nepravilno oblikovan izraz pri žetonu '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Napačen izraz"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Preračunavanje"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Za faktorizacijo je zahtevana celoštevilčna vrednost"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Ni razumne vrednosti za premestitev bitov"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Prikazana vrednost ni celoštevilska vrednost"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1579,19 +1579,19 @@ msgid "Show %d decimal _places"
 msgstr "Pokaži %d decimalnih _mest"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Datoteke pomoči ni mogoče odpreti"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE skupina za dokumente"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1599,7 +1599,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1607,113 +1607,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "O Računalo MATE"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "zasluge-prevajalcev"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Način"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Pogled"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Pomoč"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Osnovni"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Napredni"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finančni"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programiranje"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Vsebina"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiraj"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Prilepi"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Razveljavi"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Uveljavi"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Možnosti"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Končaj"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_O programu"
 
@@ -1762,19 +1762,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritem vrednosti nič ni določen"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Deljenje z ostankom je določeno le za cela števila"
 
@@ -1782,17 +1782,17 @@ msgstr "Deljenje z ostankom je določeno le za cela števila"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Potenciranje vrednosti nič ni določeno za negativne potence"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/sq.po b/po/sq.po
index 55d4d87..1e3ae80 100644
--- a/po/sq.po
+++ b/po/sq.po
@@ -12,8 +12,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Albanian (https://www.transifex.com/mate/teams/13566/sq/)\n"
@@ -555,12 +555,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Llogaritës"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Makinë llogaritëse"
 
@@ -925,7 +925,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -934,7 +934,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -946,7 +946,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -959,7 +959,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -967,13 +967,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1164,12 +1164,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1254,28 +1254,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binarë"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktav"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1284,7 +1284,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1292,103 +1292,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1404,76 +1404,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Asnjë kronollogji anullimesh"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Asnjë vlerë e dobishme për t'u regjistruar"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Shprehje e keqformuar"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Duke llogaritur"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1525,19 +1525,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "E pamundur hapja e file të ndihmës"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1545,7 +1545,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1553,31 +1553,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Elian Myftiu <[email protected]>\n"
@@ -1585,84 +1585,84 @@ msgstr ""
 "Laurent Dhima <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator (llogaritës)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Modaliteti"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Shfaq"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Ndihmë"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Bazë"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Përparuar"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Financor"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Përmbajtja"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopjo"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Ngjite"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Anullo"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Përsërit"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferenca"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Dalja"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Rreth"
 
@@ -1711,19 +1711,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritmi i zeros është i papërcaktuar"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1731,17 +1731,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/sr.po b/po/sr.po
index 2123f54..544ecc8 100644
--- a/po/sr.po
+++ b/po/sr.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Мирослав Николић <[email protected]>, 2021\n"
 "Language-Team: Serbian (https://www.transifex.com/mate/teams/13566/sr/)\n"
@@ -585,12 +585,12 @@ msgstr ""
 "површи. Ако желите да сазнате више о Мејту и Мејтовом дигитрону, посетите "
 "матичну страницу пројекта."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Мејтов дигитрон"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Дигитрон"
 
@@ -957,7 +957,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Грешка: број периода мора бити позитиван"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -968,7 +968,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -985,7 +985,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1005,7 +1005,7 @@ msgstr ""
 "  --g-fatal-warnings              Чини сва упозорења кобним"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1015,13 +1015,13 @@ msgstr ""
 "  -s, --solve <equation>          Решава задату једначину"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Аргумент „--solve“ захтева једначину за решавање"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Непознат аргумент „%s“"
@@ -1212,12 +1212,12 @@ msgid "Boolean NOT"
 msgstr "Логичко НЕ"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Целобројни део"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Разломљени део"
 
@@ -1302,28 +1302,28 @@ msgid "Straight Line Depreciation"
 msgstr "Праволинијско умањење"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Бинарна"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Октална"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Децимална"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Хексадецимална"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1333,7 +1333,7 @@ msgstr[2] "_%d места"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1342,103 +1342,103 @@ msgstr[1] "%d места"
 msgstr[2] "%d места"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Заокружи"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Заокружи на доле"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Заокружи на горе"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Знак"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Брзина светлости"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299.792.458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Магнетна константа"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1,2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Електрична константа"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8,85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Њутнова гравитациона константа"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6,67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Планкова константа"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6,62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Елементарно наелектрисање"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1,6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Маса електрона"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9,10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Маса протона"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1,672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Авогадрова константа"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6,02214086×10²³ mol⁻¹"
 
@@ -1454,76 +1454,76 @@ msgid "Switch conversion units"
 msgstr "Промените јединице претварања"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Нема радњи опозивања"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Нема радњи враћања"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Нема разумне вредности за чување"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Прекорачење. Покушајте са већом дужином речи"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Непозната променљива „%s“"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Функција „%s“ није одређена"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Непознато претварање"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Неисправан израз на „%s“"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Неисправан израз"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Израчунавам"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "За факторисање је потребан цео број"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Нема разумне вредности за битско померање"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Приказана вредност није цео број"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1575,19 +1575,19 @@ msgid "Show %d decimal _places"
 msgstr "_Прикажи %d децимална места"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Не могу да отворим датотеку помоћи"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Сан Микросистеми"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Тим документације Гнома"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1599,7 +1599,7 @@ msgstr ""
 "софтвера; било верзије 2 лиценце или (по вашем избору) било које новије "
 "верзије."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1611,7 +1611,7 @@ msgstr ""
 "ПРИЛАГОЂЕНОСТИ ОДРЕЂЕНОЈ НАМЕНИ.  Погледајте Гнуову Општу јавну лиценцу за "
 "више детаља."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1622,7 +1622,7 @@ msgstr ""
 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 "
 "USA“."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1631,11 +1631,11 @@ msgstr ""
 "Дигитрон са финансијским и научним режимом рада.\n"
 "Користи „GNU MPFR %s“ и „GNU MPC %s“"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "О Мејтовом дигитрону"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1643,89 +1643,89 @@ msgstr ""
 "Ауторска права © 1986–2010 Аутори Гдигиталата\n"
 "Ауторска права © 2011-2021 Програмери Мејта"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Мирослав Николић <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Дигитрон"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Режим"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Преглед"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "По_моћ"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Основни"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Напредни"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Финансијски"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Програмерски"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Историјат"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Садржаји"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Умножи"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "У_баци"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Опо_зови"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Понови"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "Очисти _историјат"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Поставке"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Изађи"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_О програму"
 
@@ -1774,19 +1774,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Логаритам нуле није дефинисан"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Нулти корен броја је недефинисан"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Факторијел је дефинисан само за не-негативне природне бројеве"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Дељење по модулу је дефинисано само за целе бројеве"
 
@@ -1794,17 +1794,17 @@ msgstr "Дељење по модулу је дефинисано само за �
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Степеновање нуле није дефинисано за негативне изложиоце"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Функција грешке је дефинисана само за реалне бројеве"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Рајманова зета функција је дефинисана само за реалне бројеве ≠1"
 
diff --git a/po/[email protected] b/po/[email protected]
index 92f7d5e..e7d23e4 100644
--- a/po/[email protected]
+++ b/po/[email protected]
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Serbian (Latin) (https://www.transifex.com/mate/teams/13566/sr@latin/)\n"
@@ -579,12 +579,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -951,7 +951,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Greška: broj perioda mora biti pozitivan"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -962,7 +962,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 "  --g-fatal-warnings              Čini sva upozorenja kobnim"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1009,13 +1009,13 @@ msgstr ""
 "  -s, --solve <equation>          Rešava zadatu jednačinu"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argument „--solve“ zahteva jednačinu za rešavanje"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Nepoznat argument „%s“"
@@ -1206,12 +1206,12 @@ msgid "Boolean NOT"
 msgstr "Logičko NE"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Celobrojni deo"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Razlomljeni deo"
 
@@ -1296,28 +1296,28 @@ msgid "Straight Line Depreciation"
 msgstr "Pravolinijsko umanjenje"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binarno"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktalno"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimalno"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Heksadecimalno"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1327,7 +1327,7 @@ msgstr[2] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1336,103 +1336,103 @@ msgstr[1] ""
 msgstr[2] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Zaokruži"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Zaokruži na dole"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Zaokruži na gore"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Znak"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1448,76 +1448,76 @@ msgid "Switch conversion units"
 msgstr "Promenite jedinice pretvaranja"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Nema radnji opozivanja"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Nema radnji ponavljanja"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Nema razumne vrednosti za čuvanje"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Prekoračenje. Pokušajte sa većom dužinom reči"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Nepoznata promenljiva „%s“"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funkcija „%s“ nije definisana"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Nepoznato pretvaranje"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Neispravan izraz na simbolu „%s“"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Neispravan izraz"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Izračunavam"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Za faktorisanje je potreban ceo broj"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Nema razumne vrednosti za bitsko pomeranje"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Prikazana vrednost nije ceo broj"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1569,19 +1569,19 @@ msgid "Show %d decimal _places"
 msgstr "_Prikaži %d decimalna mesta"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Ne mogu da otvorim datoteku pomoći"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1589,7 +1589,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1597,31 +1597,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Slobodan D. Sredojević <[email protected]>\n"
@@ -1629,84 +1629,84 @@ msgstr ""
 "Ivan Pejić <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Mod"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "P_regled"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Pomoć"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Osnovni"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "Na_predni"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansijski"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "P_rogramerski"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Sad_ržaj"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Umnoži"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "U_baci"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Opo_zovi"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ponovi"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "Po_stavke"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Izađi"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_O programu"
 
@@ -1755,19 +1755,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritam nule nije definisan"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Deljenje po modulu je definisano samo za cele brojeve"
 
@@ -1775,17 +1775,17 @@ msgstr "Deljenje po modulu je definisano samo za cele brojeve"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Stepenovanje nule nije definisano za negativne izložioce"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/sv.po b/po/sv.po
index 82aee69..5617d8a 100644
--- a/po/sv.po
+++ b/po/sv.po
@@ -20,8 +20,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Luna Jernberg <[email protected]>, 2021\n"
 "Language-Team: Swedish (https://www.transifex.com/mate/teams/13566/sv/)\n"
@@ -591,12 +591,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Kalkylatorn"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkylator"
 
@@ -963,7 +963,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Fel: antalet punkter måste vara positivt"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -974,7 +974,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -991,7 +991,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1011,7 +1011,7 @@ msgstr ""
 "  --g-fatal-warnings              Gör alla varningar ödesdigra"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1021,13 +1021,13 @@ msgstr ""
 "  -s, --solve <ekvation>          Lös angiven ekvation"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argumentet --solve kräver en ekvation att lösa"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Okänt argument \"%s\""
@@ -1218,12 +1218,12 @@ msgid "Boolean NOT"
 msgstr "Boolesk NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Heltalsdel"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Bråkdel"
 
@@ -1308,28 +1308,28 @@ msgid "Straight Line Depreciation"
 msgstr "Linjär avskrivning"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Binär"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Oktal"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Decimal"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Hexadecimal"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1338,7 +1338,7 @@ msgstr[1] "_%d platser"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1346,103 +1346,103 @@ msgstr[0] "%d plats"
 msgstr[1] "%d platser"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Avrunda"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Golv"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Tak"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Tecken"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1458,76 +1458,76 @@ msgid "Switch conversion units"
 msgstr "Byt konverteringsenheter"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Ingen ångringshistorik"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Ingen ångringshistorik"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Inget vettigt värde att lagra"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Överflöde. Prova en större ordstorlek"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Okänd variabel \"%s\""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Funktionen \"%s\" är inte definierad"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Okänd konvertering"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Felaktigt uttryck vid '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Felaktigt utformat uttryck"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Beräknar"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Behöver ett heltal att faktorisera"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Inget vettigt värde att göra bitvis skifte"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Visat värde är inte ett heltal"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1579,19 +1579,19 @@ msgid "Show %d decimal _places"
 msgstr "Visa %d decimal_platser"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Kunde inte öppna hjälpfilen"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE Documentation Team"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1599,7 +1599,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1607,25 +1607,25 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1633,89 +1633,89 @@ msgstr ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE utvecklarna"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Kristoffer Grundström <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Miniräknare"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Läge"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Visa"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Hjälp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Grundläggande"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Avancerad"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Finansiell"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Historik"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Innehåll"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopiera"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Klistra _in"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Ångra"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Gör om"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Rensa Historik"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Inställningar"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Avsluta"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Om"
 
@@ -1764,19 +1764,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Logaritm med noll är inte definierad"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modulus division är endast definierad för heltal"
 
@@ -1784,17 +1784,17 @@ msgstr "Modulus division är endast definierad för heltal"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Potensen för noll är inte definierad för en negativ exponent"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ta.po b/po/ta.po
index 57fe36f..ecc93c5 100644
--- a/po/ta.po
+++ b/po/ta.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Tamil (https://www.transifex.com/mate/teams/13566/ta/)\n"
@@ -579,12 +579,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE கணிப்பான்"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "கணிப்பான்"
 
@@ -951,7 +951,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "பிழை: புள்ளிகளின் எண்ணிக்கை நேர்குறியாக இருக்க வேண்டும்."
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -962,7 +962,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 "  --g-fatal-warnings              எல்லா எச்சரிக்கைகளையும் ஆபத்தாக்கு"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1009,13 +1009,13 @@ msgstr ""
 "    -s, --solve <equation>          கொடுத்த சமன்பாட்டை தீர்க்கிறது"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "--solve துணையலகுக்கு தீர்க்க ஒரு சமன்பாடு தேவை"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "தெரியாத துணை அலகு '%s'"
@@ -1206,12 +1206,12 @@ msgid "Boolean NOT"
 msgstr "பூலியன் நாட்"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "முழு எண் கூற"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "பின்னம் பகுதி"
 
@@ -1296,28 +1296,28 @@ msgid "Straight Line Depreciation"
 msgstr "நேர் கோடு குறைமானம்"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "இருமம்"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "எண்ம"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "தசம"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "பதின்அறும"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1326,7 +1326,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1334,103 +1334,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "சுற்று"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "தளம்"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "உச்ச வரம்பு"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "கையொப்பம்"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1446,76 +1446,76 @@ msgid "Switch conversion units"
 msgstr "மாற்றும் அலகை மாற்று"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "மீட்டமை வரலாறு இல்லலை"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "மீட்டமை வரலாறு இல்லை"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "சேமிக்க சேன் (sane) மதிப்பு இல்லை"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "நிரம்பிவிட்டது. இன்னும் பெரிய சொல் அளவை முயற்சி செய்க"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "தெரியாத மாறி  '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "செயல்கூறு '%s' ஐ வரையறுக்கவில்லை"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "தெரியாத மதிப்பு மாற்றம்"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "'%s'-ல் தவறான கோவை இடம்பெற்றுள்ளது"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "தவறான கோவை"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "கணக்கிடுகிறது"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "காரணிப்படுத்த பகாவெண் தேவை"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "பிட் வைஸ் மாற்றலுக்கு சேன் (sane) மதிப்பு இல்லை"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "காட்டப்பட்ட மதிப்பு முழு எண் இல்லை."
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1567,19 +1567,19 @@ msgid "Show %d decimal _places"
 msgstr "_p %d தசம இடங்களை காட்டு"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "உதவி கோப்பினை திறக்க முடியவில்லை"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1587,7 +1587,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1595,31 +1595,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
@@ -1627,84 +1627,84 @@ msgstr ""
 "  bhuvi https://launchpad.net/~bhuvanesh"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "கணிப்பி (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_M மோட்"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_பார்"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_உதவி"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "அடிப்படை (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "மேம்பட்ட  (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "நிதிநிலை (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "நிரலாக்கம் (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_C உள்ளடக்கங்கள்"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "நகல் (_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_ஒட்டு"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_கவில்"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_மீண்டும்"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "விருப்ப தேர்வுகள் "
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_வ _வெளிச்செல்"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "பற்றி "
 
@@ -1753,19 +1753,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "பூஜ்யத்தின் லாக்ருதம்  வரையறுக்கப்படவில்லை"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "மட்டு வகுத்தல் பகா எண்களுக்கு மட்டுமே வரையறுக்கப்பட்டது"
 
@@ -1773,17 +1773,17 @@ msgstr "மட்டு வகுத்தல் பகா எண்களுக
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "பூஜ்யத்தின் பவர் எதிர் அடுக்குக்கு  வரையறுக்கப்படவில்லை. "
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/te.po b/po/te.po
index 81da0c3..876bee9 100644
--- a/po/te.po
+++ b/po/te.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Telugu (https://www.transifex.com/mate/teams/13566/te/)\n"
@@ -579,12 +579,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "గణన పరికరం"
 
@@ -951,7 +951,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "దోషం: ఆవర్తనాల సంఖ్య ధనాత్మకం అయివుండాలి"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -962,7 +962,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -979,7 +979,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -999,7 +999,7 @@ msgstr ""
 "  --g-fatal-warnings              Make all warnings fatal"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1009,13 +1009,13 @@ msgstr ""
 "  -s, --solve <equation>          ఇచ్చిన సమీకరణాన్ని సాధించండి"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "ఆర్గుమెంట్ --solve అనుదానికి పరిష్కరించుటకు వొక సమీకరణం కావాలి"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "తెలియని ఆర్గుమెంట్ '%s'"
@@ -1206,12 +1206,12 @@ msgid "Boolean NOT"
 msgstr "బూలియన్ NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "పూర్ణాంక అంశం"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "భిన్నాంక అంశం"
 
@@ -1296,28 +1296,28 @@ msgid "Straight Line Depreciation"
 msgstr "సరళ రేఖ తరుగుదల"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "బైనరీ"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "అష్టము"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "దశాంశం"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "షట్కోణదశాంశం"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1326,7 +1326,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1334,103 +1334,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "గుండ్రం"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "నేల"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "కప్పు"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "చిహ్నం"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1446,76 +1446,76 @@ msgid "Switch conversion units"
 msgstr "పరివర్తక ప్రమాణాలను మార్చు"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "రద్దుచేసిన ఏమీ చరిత్రలేదు"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "మళ్ళీచేసిన ఏ చరిత్రలేదు"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "నిల్వచేయుటకు ఏ సైన్ విలువలేదు"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "మించినది. పెద్ద పద పరిమాణమును ప్రయత్నంచు"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "తెలియని చరరాశి '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' ప్రమేయం నిర్వచించబడలేదు"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "తెలియని పరివర్తనం"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "తప్పైన సమీకరణం"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "లెక్కిస్తున్నది"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "కారణాంకాలు కట్టుటకు ఒక పూర్ణాంకం అవసరం"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "బిట్ వారీ షిఫ్ట్‍ చేయుటకు ఏ స్థిరచిత్త విలువలేదు"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "ప్రదర్శించబడిన విలువ పూర్ణాంకం కాదు"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1567,19 +1567,19 @@ msgid "Show %d decimal _places"
 msgstr "%d దశాంశ స్థానాలను చూపించు (_p)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "సహాయపు దస్త్రాన్ని తెరువలేదు"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1587,7 +1587,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1595,113 +1595,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Praveen Illa <[email protected]>, 2014"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "గణనపరికరం (_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "చూడటం (_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "సహాయం (_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "ప్రాథమిక (_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "ఆధునిక (_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "ఆర్థికగణని (_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "ప్రోగ్రామింగ్ (_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "సారములు (_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "నకలుతీయు(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "అతికించు (_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "చేసింది రద్దు (_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "మళ్ళీచేయి (_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "అభిరుచులు (_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "నిష్క్రమించు (_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "గురించి (_A)"
 
@@ -1750,19 +1750,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "సున్నా యొక్క సంవర్గమానం అనిరుక్తం"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "మాడ్యులస్ భాగాహారం పూర్ణాంకాలకు మాత్రమే నిర్వచించబడింది"
 
@@ -1770,17 +1770,17 @@ msgstr "మాడ్యులస్ భాగాహారం పూర్ణా�
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "ఒక ఋణాత్మక ఘాతానికి సున్నా యొక్క ఘాతం నిర్వచించబడలేదు"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/th.po b/po/th.po
index be80b3b..de0417a 100644
--- a/po/th.po
+++ b/po/th.po
@@ -14,8 +14,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Akom <[email protected]>, 2020\n"
 "Language-Team: Thai (https://www.transifex.com/mate/teams/13566/th/)\n"
@@ -580,12 +580,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "เครื่องคิดเลข MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "เครื่องคิดเลข"
 
@@ -950,7 +950,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "ผิดพลาด: จำนวนคาบต้องเป็นค่าบวก"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -961,7 +961,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -978,7 +978,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -998,7 +998,7 @@ msgstr ""
 "  --g-fatal-warnings              ถือว่าคำเตือนต่างๆ ที่เกิดขึ้นเป็นความผิดพลาดร้ายแรง"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1008,13 +1008,13 @@ msgstr ""
 "  -s, --solve <equation>          หาผลลัพธ์ของนิพจน์ที่กำหนด"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "อาร์กิวเมนต์ --solve ต้องการนิพจน์ที่จะหาผลลัพธ์ด้วย"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "ไม่รู้จักอาร์กิวเมนต์ '%s'"
@@ -1205,12 +1205,12 @@ msgid "Boolean NOT"
 msgstr "NOT แบบบูลีน"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "ส่วนจำนวนเต็ม"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "ส่วนเศษทศนิยม"
 
@@ -1295,28 +1295,28 @@ msgid "Straight Line Depreciation"
 msgstr "ค่าเสื่อมราคาแบบเส้นตรง"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ฐานสอง"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "ฐานแปด"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ฐานสิบ"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ฐานสิบหก"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1324,110 +1324,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "ปัดเศษ"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "ปัดเศษลง"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "ปัดเศษขึ้น"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "เครื่องหมาย"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1443,76 +1443,76 @@ msgid "Switch conversion units"
 msgstr "สลับหน่วยการแปลง"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "ไม่มีประวัติคำสั่งที่จะเรียกคืน"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "ไม่มีประวัติคำสั่งที่จะทำซ้ำ"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "ไม่มีค่าที่ใช้ได้ให้เก็บ"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "ค่าล้น กรุณาลองใช้ขนาดเวิร์ดที่ใหญ่กว่านี้"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "ไม่รู้จักตัวแปร '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "ไม่รู้จักฟังก์ชัน '%s'"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "ไม่มีข้อมูลสำหรับแปลงหน่วย"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "รูปแบบนิพจน์ไม่ถูกต้องที่โทเคน '%s'"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "รูปแบบนิพจน์ไม่ถูกต้อง"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "กำลังคำนวณ"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "การแยกตัวประกอบทำได้กับจำนวนเต็มเท่านั้น"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "ไม่มีค่าที่ใช้ได้ให้เลื่อนบิต"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "ค่าที่แสดงอยู่ไม่ใช่จำนวนเต็ม"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1564,19 +1564,19 @@ msgid "Show %d decimal _places"
 msgstr "แสดงจุดทศนิยม %d _ตำแหน่ง"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ไม่สามารถเปิดแฟ้มวิธีใช้"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "ซัน ไมโครซิสเท็มส์"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1584,7 +1584,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1592,113 +1592,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Akom Chotiphantawanon <[email protected]>, 2016"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "เ_ครื่องคิดเลข"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "โห_มด"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "มุม_มอง"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_วิธีใช้"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_พื้นฐาน"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "พิ_เศษ"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "การเ_งิน"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "การเขียนโ_ปรแกรม"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "เ_นื้อหา"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_คัดลอก"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_แปะ"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "เรี_ยกคืน"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_ทำซ้ำ"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_การกำหนดค่า"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_ออก"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "เ_กี่ยวกับ"
 
@@ -1747,19 +1747,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "ลอการิทึมของศูนย์ไม่มีนิยาม"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "การหารเอาเศษมีนิยามไว้สำหรับจำนวนเต็มเท่านั้น"
 
@@ -1767,17 +1767,17 @@ msgstr "การหารเอาเศษมีนิยามไว้สำ
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "เลขยกกำลังของศูนย์ไม่มีนิยามสำหรับเลขชี้กำลังที่เป็นลบ"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/tk.po b/po/tk.po
index 8dc2312..590b437 100644
--- a/po/tk.po
+++ b/po/tk.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Turkmen (https://www.transifex.com/mate/teams/13566/tk/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Çot"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Görkez"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Mazmunlar"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Nusgala"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Ýabşyr"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Izine Al"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Ýene Et"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Çyk"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Barada"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/tr.po b/po/tr.po
index 655d043..58f595c 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -15,8 +15,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Turkish (https://www.transifex.com/mate/teams/13566/tr/)\n"
@@ -594,12 +594,12 @@ msgstr ""
 "Ortamı'nın bir parçasıdır. MATE ve MATE Hesaplayıcı hakkında daha fazla "
 "bilgi edinmek isterseniz, lütfen projenin anasayfasını ziyaret ediniz."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Hesap Makinesi"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Hesap Makinesi"
 
@@ -967,7 +967,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Hata: Periyotların toplamı sıfırdan büyük olmalıdır"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -978,7 +978,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -995,7 +995,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1015,7 +1015,7 @@ msgstr ""
 "  --g-fatal-warnings              Tüm uyarıları ölümcül yapar"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1025,13 +1025,13 @@ msgstr ""
 "  -s, --solve <denklem>           Verilen denklemi çözer"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Argüman --solve çözmek için bir denklem gerektirir"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Bilinmeyen argüman '%s'"
@@ -1222,12 +1222,12 @@ msgid "Boolean NOT"
 msgstr "Mantıksal DEĞİL"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Tamsayı Bileşeni"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Kesirli Bileşen"
 
@@ -1312,28 +1312,28 @@ msgid "Straight Line Depreciation"
 msgstr "Doğrusal Amortisman"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "İkilik"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Sekizlik"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Ondalık"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Onaltılık"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1342,7 +1342,7 @@ msgstr[1] "_%d basamak"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1350,103 +1350,103 @@ msgstr[0] "%d basamak"
 msgstr[1] "%d basamak"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Yuvarla"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Aşağı yuvarla"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Yukarı yuvarla"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "İşaret"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1462,76 +1462,76 @@ msgid "Switch conversion units"
 msgstr "Dönüştürme birimlerini yer değiştir"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Geri al geçmişi yok"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Yineleme geçmişi yok"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Saklanacak mantıklı bir değer yok"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Taşma. Daha büyük bir word boyutu deneyin"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Bilinmeyen '%s' değişkeni"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "'%s' fonksiyonu tanımlı değil"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Bilinmeyen dönüşüm"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "'%s' jetonunda yanlış yapılandırılmış ifade"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Hatalı kurulan ifade"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Hesaplanıyor"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Çarpanlara ayırmak için bir tamsayıya ihtiyaç var"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Bit kaydırma için mantıklı bir değer yok"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Gösterilen değer tam sayı değil"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1583,19 +1583,19 @@ msgid "Show %d decimal _places"
 msgstr "%d ondalık _hane göster"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Yardım dosyası açılamadı"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE Belgelendirme Projesi"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1607,7 +1607,7 @@ msgstr ""
 " versiyonları- koşulları altında yeniden dağıtabilir ve/veya "
 "değiştirebilirsiniz. "
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1615,31 +1615,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "MATE Takvim Hakkında"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "GNOME projesine katkıda bulunanlar:\n"
@@ -1654,84 +1654,84 @@ msgstr ""
 "Emre FIRAT <[email protected]>, 2013, 2014, 2015"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Hesap Makinesi"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "K_ip"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Görünüm"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Yardım"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Temel"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Gelişmiş"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Ekonomi"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Programlama"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "İçi_ndekiler"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopyala"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Y_apıştır"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Geri"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Tekrarla"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Tercihler"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Çık"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Hakkında"
 
@@ -1780,19 +1780,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Sıfırın logaritması tanımsızdır"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Modüler bölme işlemi sadece tamsayılar için tanımlıdır"
 
@@ -1800,17 +1800,17 @@ msgstr "Modüler bölme işlemi sadece tamsayılar için tanımlıdır"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Negatif bir üs için sıfırın kuvveti tanımsızdır"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/tt.po b/po/tt.po
index 94afc74..77ee9a3 100644
--- a/po/tt.po
+++ b/po/tt.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Tatar (https://www.transifex.com/mate/teams/13566/tt/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1280,110 +1280,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1399,76 +1399,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1520,19 +1520,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1540,7 +1540,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1548,113 +1548,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Küreneş"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Yärdäm"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Eçtälek"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "İs_kä al:"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Ös_tä"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Kire _al"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Kire _quy"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr ""
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Çığış"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Turında"
 
@@ -1703,19 +1703,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1723,17 +1723,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/ug.po b/po/ug.po
index 6a4dc09..895b352 100644
--- a/po/ug.po
+++ b/po/ug.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Uyghur (https://www.transifex.com/mate/teams/13566/ug/)\n"
@@ -554,12 +554,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "ھېسابلىغۇچ"
 
@@ -925,7 +925,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "خاتا: قەرەلى چوقۇم مۇسبەت سان بولسۇن"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -936,7 +936,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -953,7 +953,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -973,7 +973,7 @@ msgstr ""
 "--g-fatal-warnigs ھەممە ئاگاھلاندۇرۇشلار خەتەرگە ئايلىنىدۇ"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -983,13 +983,13 @@ msgstr ""
 "  -s, --solve <تەڭلىمە>          تەڭلىمىنى يېشىدۇ"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "نامەلۇم ئارگۇمېنت ‹%s›"
@@ -1180,12 +1180,12 @@ msgid "Boolean NOT"
 msgstr "لوگىكىلىق NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "پۈتۈن سان قىسمى"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "كەسىر سان قىسمى"
 
@@ -1270,28 +1270,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "ئىككىلىك"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "سەككىزلىك"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "ئونلۇق كەسىر"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ئون ئالتىلىك سان"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1300,7 +1300,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1308,103 +1308,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "پۈتۈن سان"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "پۈتۈنلەش"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "ئىمزا"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1420,76 +1420,76 @@ msgid "Switch conversion units"
 msgstr "ئايلاندۇرۇش بىرلىكىنى ئالماشتۇرۇش"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "يېنىۋېلىش تارىخى يوق"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "قايتىلاش تارىخى يوق"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "قويىدىغان قىممەت توغرا ئەمەس"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "تېشىپ كەتتى. چوڭراق word ئۇزۇنلۇقىنى تاللاڭ"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "نامەلۇم ئۆزگەرگۈچى ‹%s›"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "فۇنكسىيە '%s' ئېنىقلانمىغان"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "نامەلۇم ئايلاندۇرۇش"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "قۇرۇلمىسى خاتا ئىپادە"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "ھېسابلاۋاتىدۇ"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "پۈتۈن ساندىن باشقىنى كۆرسىتىدۇ"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0،1،2،3،4،5،6،7،8،9،A،B،C،D،E،F"
 
@@ -1541,19 +1541,19 @@ msgid "Show %d decimal _places"
 msgstr "چېكىتنىڭ كەينىدىن %d خانە كۆرسىتىش(_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "ياردەم ھۆججىتىنى ئاچقىلى بولمىدى"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1561,7 +1561,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1569,31 +1569,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Gheyret Kenji <[email protected]>\n"
@@ -1607,84 +1607,84 @@ msgstr ""
 "  Sahran https://launchpad.net/~sahran"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "كۆرۈش(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "ياردەم(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "مەزمۇن(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "كۆچۈر(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "چاپلا(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "يېنىۋال(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "تەكرارلا(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "مايىللىق(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "ئاخىرلاشتۇرۇش(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "ھەققىدە(_A)"
 
@@ -1733,19 +1733,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "0 نىڭ لوگارىفمىسىغا ئېنىقلىما بېرىلمىگەن"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "قالدۇق ھېسابلاش پەقەت پۈتۈن سانلارغىلا ئىناۋەتلىك"
 
@@ -1753,17 +1753,17 @@ msgstr "قالدۇق ھېسابلاش پەقەت پۈتۈن سانلارغىلا
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/uk.po b/po/uk.po
index ce2a7d3..c1ac7db 100644
--- a/po/uk.po
+++ b/po/uk.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Микола Ткач <[email protected]>, 2021\n"
 "Language-Team: Ukrainian (https://www.transifex.com/mate/teams/13566/uk/)\n"
@@ -591,12 +591,12 @@ msgstr ""
 "MATE. Якщо ви хочете дізнатися більше про MATE, чи MATE Calc, будь ласка, "
 "відвідайте домашню сторінку проєкту."
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "Рахівник MATE"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Рахівник"
 
@@ -961,7 +961,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "Помилка: кількість періодів має бути додатньою"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -972,7 +972,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -989,7 +989,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -1009,7 +1009,7 @@ msgstr ""
 "  --g-fatal-warnings              Зробити усі попередження критичними"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1019,13 +1019,13 @@ msgstr ""
 "  -s, --solve <equation>          Обчислити вираз"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Для арґументу --solve треба вказати вираз для обчислення"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Невідомий аргумент «%s»"
@@ -1216,12 +1216,12 @@ msgid "Boolean NOT"
 msgstr "Булове НІ"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Цілий компонент"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Дробовий компонент"
 
@@ -1306,28 +1306,28 @@ msgid "Straight Line Depreciation"
 msgstr "Лінійна амортизація"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Двійкова"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Вісімкова"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Десяткова"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Шістнадцяткова"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1338,7 +1338,7 @@ msgstr[3] "_%d розрядів"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1348,103 +1348,103 @@ msgstr[2] "%d розрядів"
 msgstr[3] "%d розрядів"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Коло"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Підлога"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Стеля"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Знак"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "Швидкість світла"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "Магнітна константа"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "Електрична константа"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "Стала Ньютона для гравітації"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "Стала Планка"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "Елементарний заряд"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "Маса електрона"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "Маса протона"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "Константа Авогадро"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1460,76 +1460,76 @@ msgid "Switch conversion units"
 msgstr "Змінити одиницю перетворення"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Немає історії повернень"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Немає історії повторень"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Немає нормального значення для зберігання"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Переповнення. Спробуйте більший розмір слова"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Невідома змінна «%s»"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "Функція «%s» не визначена"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Невідоме перетворення"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "Некоректний вираз: лексема «%s»"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Неправильний вираз"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Обчислення"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Для розкладання на множники вкажіть ціле число"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Немає нормального значення для побітового зсуву"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "Показане значення не є цілим числом"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1581,19 +1581,19 @@ msgid "Show %d decimal _places"
 msgstr "Показати _місця десяткового %d"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Не вдається відкрити файл довідки"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Сун Мікросістемс"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "Команда документування MATE"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1605,7 +1605,7 @@ msgstr ""
 "ліцензії GNU, оголошених Фундацією вільного програмного забезпечення; або "
 "версії 2 Ліцензії, чи (за вашим бажанням) будь-якої пізнішої версії."
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1617,7 +1617,7 @@ msgstr ""
 "ПРИДАТНОСТИ ДЛЯ ПЕВНОЇ МЕТИ. Детальніше див. У Загальній публічній ліцензії "
 "GNU."
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1628,7 +1628,7 @@ msgstr ""
 "забезпечення, Inc., Франклін Стріт, 51, П'ятий поверх, Бостон, MA "
 "02110-1301, США."
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1637,11 +1637,11 @@ msgstr ""
 "Рахівник із фінансовим і науковим режимами.\n"
 "Використовуючи GNU MPFR %s і GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "Про MATE Calc"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1649,7 +1649,7 @@ msgstr ""
 "Авторське право © 1986–2010 Автори GCalctool\n"
 "Авторське право © 2011-2021 Розробники MATE"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Yarema aka Knedlyk <[email protected]>,\n"
@@ -1657,84 +1657,84 @@ msgstr ""
 "Oleh Tsyupka <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Рахівник"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "Р_ежим"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Перегляд"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Допомога"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Простий"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Розширений"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Фінансовий"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Програмування"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "_Дієпис"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Зміст"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Копіювати"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "Вст_авити"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "Пов_ернути"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Повт_орити"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "_Очистити дієпис"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Налаштування"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Вийти"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Про програму"
 
@@ -1783,19 +1783,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "Лоґарифм від нуля неприпустимий"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "Нульовий корінь числа не визначено"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "Факторіал визначається лише для невід’ємних дійсних чисел"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "Ділення за модулем визначено лише для цілих"
 
@@ -1803,17 +1803,17 @@ msgstr "Ділення за модулем визначено лише для ц
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "Ступінь від нуля не визначено для від'ємних експонент"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "Функція помилки визначена лише для дійсних чисел"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "Дзета-функція Рімана визначена лише для дійсних чисел ≠ 1"
 
diff --git a/po/ur.po b/po/ur.po
index b7add5a..54348b1 100644
--- a/po/ur.po
+++ b/po/ur.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: mauron, 2020\n"
 "Language-Team: Urdu (https://www.transifex.com/mate/teams/13566/ur/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "ششدہی نظام"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,31 +1550,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "محمد علی مکی\n"
@@ -1585,84 +1585,84 @@ msgstr ""
 "http://makki.urducoder.com"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_منظر"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_ہدایات"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_ہدایات کے موضوعات"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_کاپی کریں"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_منسوخ کریں"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "ا_عادہ کریں"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_ترجیحات"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_برخاست کریں"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_بابت"
 
@@ -1711,19 +1711,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1731,17 +1731,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/uz.po b/po/uz.po
index ccddae8..be7de17 100644
--- a/po/uz.po
+++ b/po/uz.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Muzaffar Habibullayev <[email protected]>, 2020\n"
 "Language-Team: Uzbek (https://www.transifex.com/mate/teams/13566/uz/)\n"
@@ -553,12 +553,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE Kalkulyator"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Kalkulyator"
 
@@ -923,7 +923,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -932,7 +932,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -944,7 +944,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -957,7 +957,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -965,13 +965,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1162,12 +1162,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1252,28 +1252,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,110 +1281,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1400,76 +1400,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Hisoblanmoqda"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1521,19 +1521,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1541,7 +1541,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1549,113 +1549,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "tarjimonlar"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "_Kalkulyator"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "_Rejim"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Ko'rish"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Yordam"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Sodda"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Murakkab"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Moliyaviy"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Dasturlash"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Tarkibi"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Nusxa olish"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr ""
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Bekor qilish"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Qaytarish"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Xususiyatlar"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Chiqish"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Haqida"
 
@@ -1704,19 +1704,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1724,17 +1724,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/vi.po b/po/vi.po
index 26ad6b1..93b22be 100644
--- a/po/vi.po
+++ b/po/vi.po
@@ -11,8 +11,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Vietnamese (https://www.transifex.com/mate/teams/13566/vi/)\n"
@@ -579,12 +579,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Bàn tính"
 
@@ -950,7 +950,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -959,7 +959,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -976,7 +976,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -996,7 +996,7 @@ msgstr ""
 "  --g-fatal-warnings              Tạo tất cả thông báo lỗi nguy hiểm"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -1004,13 +1004,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "Tham số --solve cần một phương trình để giải"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "Không hiểu tham số '%s'"
@@ -1201,12 +1201,12 @@ msgid "Boolean NOT"
 msgstr "PHỦ ĐỊNH luận lý"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "Phần nguyên"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "Phần phân số"
 
@@ -1291,28 +1291,28 @@ msgid "Straight Line Depreciation"
 msgstr "Khấu hao theo đường thẳng"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "Nhị phân"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "Bát phân"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "Thập phân"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "Thập lục phân"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1320,110 +1320,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "Làm tròn"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "Làm tròn xuống"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "Làm tròn lên"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "Dấu"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1439,76 +1439,76 @@ msgid "Switch conversion units"
 msgstr "Chuyển đổi đơn vị"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "Không có lược sử hủy bước"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "Không có lược sử làm lại"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Không có giá trị hữu tỷ để lưu"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "Tràn bộ nhớ. Hãy thử với kích thước từ (word) lớn hơn."
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "Biến lạ '%s'"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "Chuyển đổi không biết"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Biểu thức sai"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "Đang tính"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "Cần số nguyên để phân tích nhân tử"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "Không có giá trị đúng đắn để dịch bit"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1560,19 +1560,19 @@ msgid "Show %d decimal _places"
 msgstr "Hiện %d _số thập phân"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "Không thể mở tập tin trợ giúp"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1580,7 +1580,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1588,113 +1588,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "giới thiệu-nhóm dịch"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "Bàn _tính"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Xem"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "Trợ _giúp"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "Cơ _bản"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "_Cấp cao"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "_Tài chính"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "_Lập trình"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Mụ_c lục"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Chép"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Dán"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Hủy bước"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "Bước _lại"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Tùy thích"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "T_hoát"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Giới thiệu"
 
@@ -1743,19 +1743,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1763,17 +1763,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/wa.po b/po/wa.po
index 8ab83c6..61579e4 100644
--- a/po/wa.po
+++ b/po/wa.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Walloon (https://www.transifex.com/mate/teams/13566/wa/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Pablo Saratxaga <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Vey"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Aidance"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "Å d_vins"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Copyî"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "C_laper"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Disfé"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Rifé"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Preferinces"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "Moussî _foû"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "Å_d fwait"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/xh.po b/po/xh.po
index a65a72a..5526a7c 100644
--- a/po/xh.po
+++ b/po/xh.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Xhosa (https://www.transifex.com/mate/teams/13566/xh/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "Ikhaltyuleyitha"
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "Alikho ixabiso le-sane elingagcinwa"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "Intetho engemanga kakuhle"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,113 +1550,113 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr "Canonical Ltd <[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "I_khaltyuleyitha"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Bonakalisa"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Nceda"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "_Esisiseko"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "E_hambele phambili"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "E_zezimali"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Okuqulethweyo"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopa"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Ncamathelisa"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Buyisela okwenziweyo"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Yenze kwakhona"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Ezikhethwayo"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Phuma"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Malunga"
 
@@ -1705,19 +1705,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1725,17 +1725,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/zh_CN.po b/po/zh_CN.po
index 2396469..759dd01 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -13,16 +13,17 @@
 # 玉堂白鹤 <[email protected]>, 2020
 # a73a47e368cc011d8f94528bd9d5d3f1_91fccdf <1b07f49e2a323989c85dd26d526f7bb9_871526>, 2020
 # Stefano Karapetsas <[email protected]>, 2020
-# Ming-Tian Yang <[email protected]>, 2020
+# Skylee Ming-Tian Yang <[email protected]>, 2020
 # liulitchi <[email protected]>, 2020
+# Wenbin Lv <[email protected]>, 2021
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: liulitchi <[email protected]>, 2020\n"
+"Last-Translator: Wenbin Lv <[email protected]>, 2021\n"
 "Language-Team: Chinese (China) (https://www.transifex.com/mate/teams/13566/zh_CN/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -565,12 +566,12 @@ msgstr ""
 "MATE Calc 为 MATE 桌面环境的一部分，是 GNOME Calc 的复刻。想了解更多 MATE 及 MATE Calc "
 "的信息，请访问项目主页。"
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE 计算器"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "计算器"
 
@@ -935,7 +936,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "错误：周期必须为正数"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -946,7 +947,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -963,7 +964,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -983,7 +984,7 @@ msgstr ""
 "  --g-fatal-warnings             给出所有重要警告"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -993,13 +994,13 @@ msgstr ""
 "  -s，--solve <方程>              求解给出的方程"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "参数 --solve 需要一个方程以便求解"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "未知参数“%s”"
@@ -1190,12 +1191,12 @@ msgid "Boolean NOT"
 msgstr "逻辑非"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "整数部分"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "小数部分"
 
@@ -1280,28 +1281,28 @@ msgid "Straight Line Depreciation"
 msgstr "直线折旧"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "二进制"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "八进制"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "十进制"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "十六进制"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1309,110 +1310,110 @@ msgstr[0] "_%d 位"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "%d 位"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "舍入"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "下限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "上限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "符号"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "光速"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 m/s"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "磁常数"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "真空介电常量"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "万有引力常数"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "普朗克常量"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "基本电荷"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "电子质量"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "质子质量"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "阿伏伽德罗常数"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1428,76 +1429,76 @@ msgid "Switch conversion units"
 msgstr "转换单位"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "无撤销记录"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "无重做记录"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "没有要存储的标准值"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "溢出。请尝试一个更大的字长"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "未知变量“%s”"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "函数“%s”未定义"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "未知转换"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "”%s“ 表达式格式错误"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "表达式格式错误"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "计算"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "分解因式运算需要一个整数"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "没有正常数值可用于移位"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "显示的值不是整数"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1549,19 +1550,19 @@ msgid "Show %d decimal _places"
 msgstr "显示 %d 个十进制位(_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "无法打开帮助文件"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "Sun Microsystems"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE 文档团队"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1570,7 +1571,7 @@ msgid ""
 msgstr ""
 "MATE 计算器为自由软件；在自由软件基金会发表的 GNU GPL 协议下，任何人都可自由发布或修改该软件；GPL 协议应采用第二版或后续版本。"
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1580,7 +1581,7 @@ msgstr ""
 "MATE Calculator "
 "发表的目的是希望它能够对您有用，但我们没有任何保证；对于以任何用途使用它所造成的任何直接或间接后果都不承担任何责任。请参看GNU GPL 协议中的细节。"
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1589,24 +1590,28 @@ msgstr ""
 "MATE 计算器附有 GNU GPL 协议的副本；如未发现协议，请写信给自由软件基金会，地址是 51 Franklin Street, Fifth "
 "Floor, Boston, MA 02110-1301 USA 。"
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
+"具有财务和科学模式的计算器。\n"
+"使用 GNU MPFR %s 和 GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "关于 MATE Calculator"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
+"版权所有 © 1986–2010 GCalctool 作者\n"
+"版权所有 © 2011-2021 MATE 开发者"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Christopher Meng <[email protected]>, 2012-2013\n"
@@ -1621,84 +1626,84 @@ msgstr ""
 "刘子兴 <[email protected]>, 2015-2016"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "计算器(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "视图(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "帮助(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "基本(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "高级(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "财务(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "编程(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
-msgstr ""
+msgstr "历史(_H)"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "目录(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "复制(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "粘贴(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "撤消(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "重做(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
-msgstr ""
+msgstr "清除历史(_C)"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "属性(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "退出(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "关于(_A)"
 
@@ -1747,19 +1752,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "零的对数未定义"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
-msgstr ""
+msgstr "数的零次方根未定义"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
-msgstr ""
+msgstr "阶乘仅对非负实数有定义"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "取模运算仅对整数有意义"
 
@@ -1767,19 +1772,19 @@ msgstr "取模运算仅对整数有意义"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "负数的零次幂未定义"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
-msgstr ""
+msgstr "误差函数仅对实数有定义"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
-msgstr ""
+msgstr "黎曼 zeta 函数仅对不等于 1 的实数有定义"
 
 #. Translators: Error displayed when tangent value is undefined
 #: src/mp-trigonometric.c:120
@@ -1801,7 +1806,7 @@ msgstr "反余弦函数在 [-1,1] 范围之外无意义"
 #. Translators: Error displayed when inverse sine value is undefined
 #: src/mp-trigonometric.c:201
 msgid "Arctangent function is undefined for values i and -i"
-msgstr ""
+msgstr "反正切函数对 i 和 -i 未定义"
 
 #. Translators: Error displayed when inverse hyperbolic cosine value is
 #. undefined
@@ -1813,7 +1818,7 @@ msgstr "对小于 1 的数求反双曲余弦函数无意义"
 #. undefined
 #: src/mp-trigonometric.c:275
 msgid "Inverse hyperbolic tangent is undefined for values outside (-1, 1)"
-msgstr ""
+msgstr "反双曲正切函数在(-1, 1)之外未定义"
 
 #: src/unit-manager.c:54
 #, c-format
diff --git a/po/zh_HK.po b/po/zh_HK.po
index 91f6aaf..ba076b9 100644
--- a/po/zh_HK.po
+++ b/po/zh_HK.po
@@ -10,8 +10,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Chinese (Hong Kong) (https://www.transifex.com/mate/teams/13566/zh_HK/)\n"
@@ -555,12 +555,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE 計數機"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "計數機"
 
@@ -925,7 +925,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "錯誤：週期數必須為正"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -936,7 +936,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -952,7 +952,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -972,7 +972,7 @@ msgstr ""
 "  --g-fatal-warnings              將所有警告設為嚴重的"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -982,13 +982,13 @@ msgstr ""
 "  -s, --solve <equation>          解開指定的算式"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "引數 --solve 需要指定想解開的方程式"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "不明的引數「%s」"
@@ -1179,12 +1179,12 @@ msgid "Boolean NOT"
 msgstr "邏輯 NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "整數部分"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "小數部分"
 
@@ -1269,28 +1269,28 @@ msgid "Straight Line Depreciation"
 msgstr "直線折舊法"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "2 進位"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "8 進位"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "10 進位"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "16 進制數字"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1298,110 +1298,110 @@ msgstr[0] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "四捨五入"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "下限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "上限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "符號函數"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1417,76 +1417,76 @@ msgid "Switch conversion units"
 msgstr "切換轉換單位"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "沒有復原紀錄"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "沒有取消復原紀錄"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "沒有正常數值可以儲存"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "溢位。請嘗試更大的字詞大小"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "不明的變數「%s」"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "尚未定義函數「%s」"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "不明的換算"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "算式中的符號「%s」錯誤"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "算式錯誤"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "計算中"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "需要整數才能因數分解"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "沒有正常數值可以進行移位"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "顯示的數值不是整數值"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1538,19 +1538,19 @@ msgid "Show %d decimal _places"
 msgstr "顯示小數點後 %d 位數(_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "無法開啟求助檔案"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1558,7 +1558,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1566,31 +1566,31 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Launchpad Contributions:\n"
@@ -1598,84 +1598,84 @@ msgstr ""
 "  yanq.wang https://launchpad.net/~nile-wangyq"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "計數機(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "檢視(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "求助(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "基本模式(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "進階模式(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "財務計算模式(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "軟件開發(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "內容(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "複製(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "貼上(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "復原(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "取消復原(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "偏好設定(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "結束(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "關於(_A)"
 
@@ -1724,19 +1724,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "0 的對數並無意義"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "餘數除法只能用於整數值"
 
@@ -1744,17 +1744,17 @@ msgstr "餘數除法只能用於整數值"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "負數的 0 次方並無意義"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""
 
diff --git a/po/zh_TW.po b/po/zh_TW.po
index a0dce7a..66fad43 100644
--- a/po/zh_TW.po
+++ b/po/zh_TW.po
@@ -13,8 +13,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: 黃柏諺 <[email protected]>, 2021\n"
 "Language-Team: Chinese (Taiwan) (https://www.transifex.com/mate/teams/13566/zh_TW/)\n"
@@ -560,12 +560,12 @@ msgstr ""
 "MATE Calc 是一個 GNOME Calc 的分支以及 MATE 桌面環境的一部份。若您想要知道更多關於 MATE 與 MATE Calc "
 "的資訊，請拜訪專案首頁。"
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr "MATE 計算機"
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr "計算機"
 
@@ -930,7 +930,7 @@ msgid "Error: the number of periods must be positive"
 msgstr "錯誤：週期數必須為正"
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -941,7 +941,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -957,7 +957,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -977,7 +977,7 @@ msgstr ""
 "  --g-fatal-warnings              將所有警告設為嚴重的"
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -987,13 +987,13 @@ msgstr ""
 "  -s, --solve <equation>          解開指定的算式"
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr "引數 --solve 需要指定想解開的方程式"
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr "不明的引數「%s」"
@@ -1184,12 +1184,12 @@ msgid "Boolean NOT"
 msgstr "布林 NOT"
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr "整數部分"
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr "小數部分"
 
@@ -1274,28 +1274,28 @@ msgid "Straight Line Depreciation"
 msgstr "直線折舊法"
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr "2 進位"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr "8 進位"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr "10 進位"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr "16 進位"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1303,110 +1303,110 @@ msgstr[0] "_%d 個位"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "%d 個位"
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr "四捨五入"
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr "下限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr "上限"
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr "符號函數"
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr "光速"
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr "299,792,458 公尺／秒"
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr "磁力常數"
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr "1.2566370614×10⁻⁶ N/A²"
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr "電力常數"
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr "8.85418782×10⁻¹² s⁴A²/m³kg"
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr "牛頓萬有引力常數"
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr "6.67408×10⁻¹¹ m³/(s²kg)"
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr "普朗克常數"
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr "6.62607004×10⁻³⁴ m²kg/s"
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr "基本電荷"
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr "1.6021766208(98)×10⁻¹⁹ C"
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr "電子質量"
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr "9.10938356×10⁻³¹ kg"
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr "質子質量"
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr "1.672621898(21)×10⁻²⁷ kg"
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr "亞佛加厥常數"
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr "6.02214086×10²³ mol⁻¹"
 
@@ -1422,76 +1422,76 @@ msgid "Switch conversion units"
 msgstr "切換轉換單位"
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr "沒有復原紀錄"
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr "沒有取消復原紀錄"
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr "沒有正常數值可以儲存"
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr "溢位。請嘗試更大的字詞大小"
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "不明的變數「%s」"
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "尚未定義函數「%s」"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr "不明的換算"
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr "算式中的符號「%s」錯誤"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr "算式錯誤"
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr "計算中"
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr "需要整數才能因數分解"
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr "沒有正常數值可以進行移位"
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr "顯示的數值不是整數值"
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
@@ -1543,19 +1543,19 @@ msgid "Show %d decimal _places"
 msgstr "顯示小數點後 %d 位數(_P)"
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr "無法開啟求助檔案"
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr "昇陽電腦"
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr "MATE 文件團隊"
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1565,7 +1565,7 @@ msgstr ""
 "MATE 計算機為自由軟體；您可依據自由軟體基金會所發表的 GNU 通用公共授權\n"
 "條款規定，就本程式再為散布與／或修改；無論您依據的是本授權的第二版或（您自行選擇的）任一日後發行的版本。"
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1574,7 +1574,7 @@ msgid ""
 msgstr ""
 "MATE 計算機係基於使用目的而加以散布，然而不負任何擔保責任；亦無對適售性或特定目的適用性所為的默示性擔保。詳情請參照 GNU 通用公共授權。"
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
@@ -1583,7 +1583,7 @@ msgstr ""
 "您應該已收到附於 MATE 計算機的 GNU 通用公共授權的副本。如果沒有，請寫信至：Free Software Foundation, Inc., "
 "51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA"
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
@@ -1592,11 +1592,11 @@ msgstr ""
 "有財務與科學模式的計算機。\n"
 "使用 GNU MPFR %s 與 GNU MPC %s"
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr "關於 MATE 計算機"
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
@@ -1604,7 +1604,7 @@ msgstr ""
 "Copyright © 1986–2010 GCalctool 作者群\n"
 "Copyright © 2011–2021 MATE 開發者"
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "黃柏諺 <[email protected]>,2013-14\n"
@@ -1615,84 +1615,84 @@ msgstr ""
 "Walter Cheuk <[email protected]>, 2016."
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr "計算機(_C)"
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "檢視(_V)"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "說明(_H)"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr "基本模式(_B)"
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr "進階模式(_A)"
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr "財務計算模式(_F)"
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr "軟體開發(_P)"
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr "歷史紀錄(_H)"
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "內容(_C)"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "複製(_C)"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "貼上(_P)"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "復原(_U)"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "重做(_R)"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr "清除歷史紀錄(_C)"
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "偏好設定(_P)"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "結束(_Q)"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "關於(_A)"
 
@@ -1741,19 +1741,19 @@ msgid "Logarithm of zero is undefined"
 msgstr "0 的對數並無意義"
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr "數字的零次根為未定義"
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "階乘僅能用於非負實數"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr "餘數除法只能用於整數值"
 
@@ -1761,17 +1761,17 @@ msgstr "餘數除法只能用於整數值"
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "負數的 0 次方並無意義"
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr "錯誤函數僅能用於實數"
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr "黎曼 ζ 函數僅能用於不等於 1 的實數"
 
diff --git a/po/zu.po b/po/zu.po
index 74673d4..0a19d7c 100644
--- a/po/zu.po
+++ b/po/zu.po
@@ -9,8 +9,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: mate-calc 1.25.0\n"
-"Report-Msgid-Bugs-To: http://mate-desktop.org\n"
-"POT-Creation-Date: 2021-01-16 15:04+0100\n"
+"Report-Msgid-Bugs-To: https://github.com/mate-desktop/mate-calc/issues\n"
+"POT-Creation-Date: 2021-05-30 11:18+0200\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2020\n"
 "Language-Team: Zulu (https://www.transifex.com/mate/teams/13566/zu/)\n"
@@ -552,12 +552,12 @@ msgid ""
 "project's home page."
 msgstr ""
 
-#: data/mate-calc.desktop.in:3 src/math-window.c:364
+#: data/mate-calc.desktop.in:3 src/math-window.c:368
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: data/mate-calc.desktop.in:4 src/math-window.c:710
+#: data/mate-calc.desktop.in:4 src/math-window.c:723
 msgid "Calculator"
 msgstr ""
 
@@ -922,7 +922,7 @@ msgid "Error: the number of periods must be positive"
 msgstr ""
 
 #. Description on how to use mate-calc displayed on command-line
-#: src/mate-calc.c:82
+#: src/mate-calc.c:86
 #, c-format
 msgid ""
 "Usage:\n"
@@ -931,7 +931,7 @@ msgstr ""
 
 #. Description on mate-calc command-line help options displayed on command-
 #. line
-#: src/mate-calc.c:90
+#: src/mate-calc.c:94
 #, c-format
 msgid ""
 "Help Options:\n"
@@ -943,7 +943,7 @@ msgstr ""
 
 #. Description on mate-calc command-line GTK+ options displayed on command-
 #. line
-#: src/mate-calc.c:101
+#: src/mate-calc.c:105
 #, c-format
 msgid ""
 "GTK+ Options:\n"
@@ -956,7 +956,7 @@ msgid ""
 msgstr ""
 
 #. Description on mate-calc application options displayed on command-line
-#: src/mate-calc.c:115
+#: src/mate-calc.c:119
 #, c-format
 msgid ""
 "Application Options:\n"
@@ -964,13 +964,13 @@ msgid ""
 msgstr ""
 
 #. Error printed to stderr when user uses --solve argument without an equation
-#: src/mate-calc.c:163
+#: src/mate-calc.c:167
 #, c-format
 msgid "Argument --solve requires an equation to solve"
 msgstr ""
 
 #. Error printed to stderr when user provides an unknown command-line argument
-#: src/mate-calc.c:174
+#: src/mate-calc.c:178
 #, c-format
 msgid "Unknown argument '%s'"
 msgstr ""
@@ -1161,12 +1161,12 @@ msgid "Boolean NOT"
 msgstr ""
 
 #. Tooltip for the integer component button
-#: src/math-buttons.c:206 src/math-buttons.c:993
+#: src/math-buttons.c:206 src/math-buttons.c:997
 msgid "Integer Component"
 msgstr ""
 
 #. Tooltip for the fractional component button
-#: src/math-buttons.c:209 src/math-buttons.c:995
+#: src/math-buttons.c:209 src/math-buttons.c:999
 msgid "Fractional Component"
 msgstr ""
 
@@ -1251,28 +1251,28 @@ msgid "Straight Line Depreciation"
 msgstr ""
 
 #. Number display mode combo: Binary, e.g. 10011010010₂
-#: src/math-buttons.c:626
+#: src/math-buttons.c:630
 msgid "Binary"
 msgstr ""
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: src/math-buttons.c:630
+#: src/math-buttons.c:634
 msgid "Octal"
 msgstr ""
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: src/math-buttons.c:634
+#: src/math-buttons.c:638
 msgid "Decimal"
 msgstr ""
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: src/math-buttons.c:638
+#: src/math-buttons.c:642
 msgid "Hexadecimal"
 msgstr ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: src/math-buttons.c:906 src/math-buttons.c:948
+#: src/math-buttons.c:910 src/math-buttons.c:952
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1281,7 +1281,7 @@ msgstr[1] ""
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: src/math-buttons.c:910 src/math-buttons.c:952
+#: src/math-buttons.c:914 src/math-buttons.c:956
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1289,103 +1289,103 @@ msgstr[0] ""
 msgstr[1] ""
 
 #. Tooltip for the round button
-#: src/math-buttons.c:997
+#: src/math-buttons.c:1001
 msgid "Round"
 msgstr ""
 
 #. Tooltip for the floor button
-#: src/math-buttons.c:999
+#: src/math-buttons.c:1003
 msgid "Floor"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1001
+#: src/math-buttons.c:1005
 msgid "Ceiling"
 msgstr ""
 
 #. Tooltip for the ceiling button
-#: src/math-buttons.c:1003
+#: src/math-buttons.c:1007
 msgid "Sign"
 msgstr ""
 
 #. Tooltip for the c₀ component button
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "Velocity of Light"
 msgstr ""
 
-#: src/math-buttons.c:1045
+#: src/math-buttons.c:1049
 msgid "299,792,458 m/s"
 msgstr ""
 
 #. Tooltip for the μ₀ component button
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "Magnetic constant"
 msgstr ""
 
-#: src/math-buttons.c:1047
+#: src/math-buttons.c:1051
 msgid "1.2566370614×10⁻⁶ N/A²"
 msgstr ""
 
 #. Tooltip for the ε₀ button
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "Electric constant"
 msgstr ""
 
-#: src/math-buttons.c:1049
+#: src/math-buttons.c:1053
 msgid "8.85418782×10⁻¹² s⁴A²/m³kg"
 msgstr ""
 
 #. Tooltip for the G button
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "Newtonian constant of gravitation"
 msgstr ""
 
-#: src/math-buttons.c:1051
+#: src/math-buttons.c:1055
 msgid "6.67408×10⁻¹¹ m³/(s²kg)"
 msgstr ""
 
 #. Tooltip for the h button
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "Planck constant"
 msgstr ""
 
-#: src/math-buttons.c:1053
+#: src/math-buttons.c:1057
 msgid "6.62607004×10⁻³⁴ m²kg/s"
 msgstr ""
 
 #. Tooltip for the ｅ button
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "Elementary charge"
 msgstr ""
 
-#: src/math-buttons.c:1055
+#: src/math-buttons.c:1059
 msgid "1.6021766208(98)×10⁻¹⁹ C"
 msgstr ""
 
 #. Tooltip for the mₑ button
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "Electron mass"
 msgstr ""
 
-#: src/math-buttons.c:1057
+#: src/math-buttons.c:1061
 msgid "9.10938356×10⁻³¹ kg"
 msgstr ""
 
 #. Tooltip for the mₚ button
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "Proton mass"
 msgstr ""
 
-#: src/math-buttons.c:1059
+#: src/math-buttons.c:1063
 msgid "1.672621898(21)×10⁻²⁷ kg"
 msgstr ""
 
 #. Tooltip for the Nₐ button
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "Avogadro constant"
 msgstr ""
 
-#: src/math-buttons.c:1061
+#: src/math-buttons.c:1065
 msgid "6.02214086×10²³ mol⁻¹"
 msgstr ""
 
@@ -1401,76 +1401,76 @@ msgid "Switch conversion units"
 msgstr ""
 
 #. Error shown when trying to undo with no undo history
-#: src/math-equation.c:458
+#: src/math-equation.c:460
 msgid "No undo history"
 msgstr ""
 
 #. Error shown when trying to redo with no redo history
-#: src/math-equation.c:485
+#: src/math-equation.c:487
 msgid "No redo history"
 msgstr ""
 
-#: src/math-equation.c:947
+#: src/math-equation.c:949
 msgid "No sane value to store"
 msgstr ""
 
 #. Error displayed to user when they perform a bitwise operation on numbers
 #. greater than the current word
-#: src/math-equation.c:1257
+#: src/math-equation.c:1258
 msgid "Overflow. Try a bigger word size"
 msgstr ""
 
 #. Error displayed to user when they an unknown variable is entered
-#: src/math-equation.c:1262
+#: src/math-equation.c:1263
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr ""
 
 #. Error displayed to user when an unknown function is entered
-#: src/math-equation.c:1267
+#: src/math-equation.c:1268
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr ""
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: src/math-equation.c:1272
+#: src/math-equation.c:1273
 msgid "Unknown conversion"
 msgstr ""
 
 #. Uncategorized error. Show error token to user
-#: src/math-equation.c:1280
+#: src/math-equation.c:1281
 #, c-format
 msgid "Malformed expression at token '%s'"
 msgstr ""
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: src/math-equation.c:1283 src/math-equation.c:1288
+#: src/math-equation.c:1284 src/math-equation.c:1289
 msgid "Malformed expression"
 msgstr ""
 
-#: src/math-equation.c:1303
+#: src/math-equation.c:1304
 msgid "Calculating"
 msgstr ""
 
 #. Error displayed when trying to factorize a non-integer value
-#: src/math-equation.c:1438
+#: src/math-equation.c:1443
 msgid "Need an integer to factorize"
 msgstr ""
 
 #. This message is displayed in the status bar when a bit
 #. shift operation is performed and the display does not contain a number
-#: src/math-equation.c:1511
+#: src/math-equation.c:1516
 msgid "No sane value to bitwise shift"
 msgstr ""
 
 #. Message displayed when cannot toggle bit in display
-#: src/math-equation.c:1544
+#: src/math-equation.c:1549
 msgid "Displayed value not an integer"
 msgstr ""
 
 #. Digits localized for the given language
-#: src/math-equation.c:1981
+#: src/math-equation.c:1997
 msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr ""
 
@@ -1522,19 +1522,19 @@ msgid "Show %d decimal _places"
 msgstr ""
 
 #. Translators: Error message displayed when unable to launch help browser
-#: src/math-window.c:290
+#: src/math-window.c:294
 msgid "Unable to open help file"
 msgstr ""
 
-#: src/math-window.c:308
+#: src/math-window.c:312
 msgid "Sun Microsystems"
 msgstr ""
 
-#: src/math-window.c:309
+#: src/math-window.c:313
 msgid "MATE Documentation Team"
 msgstr ""
 
-#: src/math-window.c:315
+#: src/math-window.c:319
 msgid ""
 "MATE Calculator is free software; you can redistribute it and/or modify it "
 "under the terms of the GNU General Public License as published by the Free "
@@ -1542,7 +1542,7 @@ msgid ""
 "any later version."
 msgstr ""
 
-#: src/math-window.c:319
+#: src/math-window.c:323
 msgid ""
 "MATE Calculator is distributed in the hope that it will be useful, but "
 "WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
@@ -1550,115 +1550,115 @@ msgid ""
 " more details."
 msgstr ""
 
-#: src/math-window.c:323
+#: src/math-window.c:327
 msgid ""
 "You should have received a copy of the GNU General Public License along with"
 " MATE Calculator; if not, write to the Free Software Foundation, Inc., 51 "
 "Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 msgstr ""
 
-#: src/math-window.c:360
+#: src/math-window.c:364
 #, c-format
 msgid ""
 "Calculator with financial and scientific modes.\n"
 "Using GNU MPFR %s and GNU MPC %s"
 msgstr ""
 
-#: src/math-window.c:366
+#: src/math-window.c:370
 msgid "About MATE Calculator"
 msgstr ""
 
-#: src/math-window.c:367
+#: src/math-window.c:371
 msgid ""
 "Copyright © 1986–2010 The GCalctool authors\n"
 "Copyright © 2011-2021 MATE developers"
 msgstr ""
 
-#: src/math-window.c:373
+#: src/math-window.c:377
 msgid "translator-credits"
 msgstr ""
 "Kemi Translations <[email protected]>Translate.org.za "
 "<[email protected]>"
 
 #. Calculator menu
-#: src/math-window.c:515
+#: src/math-window.c:526
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: src/math-window.c:517
+#: src/math-window.c:528
 msgid "_Mode"
 msgstr ""
 
 #. View menu
-#: src/math-window.c:519
+#: src/math-window.c:530
 msgid "_View"
 msgstr "_Bheka"
 
 #. Help menu label
-#: src/math-window.c:521
+#: src/math-window.c:532
 msgid "_Help"
 msgstr "_Usizo"
 
 #. Basic menu label
-#: src/math-window.c:523
+#: src/math-window.c:534
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: src/math-window.c:525
+#: src/math-window.c:536
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: src/math-window.c:527
+#: src/math-window.c:538
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: src/math-window.c:529
+#: src/math-window.c:540
 msgid "_Programming"
 msgstr ""
 
 #. History menu label
-#: src/math-window.c:531
+#: src/math-window.c:542
 msgid "_History"
 msgstr ""
 
 #. Help>Contents menu label
-#: src/math-window.c:533
+#: src/math-window.c:544
 msgid "_Contents"
 msgstr "_Iziqikithi"
 
-#: src/math-window.c:536
+#: src/math-window.c:547
 msgid "_Copy"
 msgstr "_Kopisha"
 
-#: src/math-window.c:538
+#: src/math-window.c:549
 msgid "_Paste"
 msgstr "_Namathisela"
 
-#: src/math-window.c:540
+#: src/math-window.c:551
 msgid "_Undo"
 msgstr "_Ungakwenzi"
 
-#: src/math-window.c:542
+#: src/math-window.c:553
 msgid "_Redo"
 msgstr "_Yenza futhi"
 
-#: src/math-window.c:544
+#: src/math-window.c:555
 msgid "_Clear History"
 msgstr ""
 
-#: src/math-window.c:547
+#: src/math-window.c:558
 msgid "_Preferences"
 msgstr "_Okuthandekayo"
 
-#: src/math-window.c:549
+#: src/math-window.c:560
 msgid "_Quit"
 msgstr "_Phuma"
 
-#: src/math-window.c:570
+#: src/math-window.c:581
 msgid "_About"
 msgstr "_Nge"
 
@@ -1707,19 +1707,19 @@ msgid "Logarithm of zero is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempting to take zeroth root
-#: src/mp.c:431
+#: src/mp.c:434
 msgid "The zeroth root of a number is undefined"
 msgstr ""
 
 #. Translators: Error displayed when attempted take the factorial of a
 #. negative or complex number
-#: src/mp.c:471
+#: src/mp.c:474
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr ""
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
-#: src/mp.c:501
+#: src/mp.c:504
 msgid "Modulus division is only defined for integers"
 msgstr ""
 
@@ -1727,17 +1727,17 @@ msgstr ""
 #. exponent
 #. Translators: Error displayed when attempted to raise 0 to a negative
 #. re_exponent
-#: src/mp.c:572 src/mp.c:599
+#: src/mp.c:575 src/mp.c:602
 msgid "The power of zero is undefined for a negative exponent"
 msgstr ""
 
 #. Translators: Error displayed when error function (erf) value is undefined
-#: src/mp.c:612
+#: src/mp.c:615
 msgid "The error function is only defined for real numbers"
 msgstr ""
 
 #. Translators: Error displayed when zeta function value is undefined
-#: src/mp.c:629
+#: src/mp.c:632
 msgid "The Riemann zeta function is only defined for real numbers ≠1"
 msgstr ""