125 files changed, 11081 insertions, 5699 deletions

diff --git a/help/ca/ca.po b/help/ca/ca.po
index 06f4db8..57a8e0a 100644
--- a/help/ca/ca.po
+++ b/help/ca/ca.po
@@ -1,14 +1,14 @@
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
 # Pere O. <[email protected]>, 2018
-# Robert Antoni Buj Gelonch <[email protected]>, 2018
+# Robert Antoni Buj Gelonch <[email protected]>, 2019
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
-"Last-Translator: Robert Antoni Buj Gelonch <[email protected]>, 2018\n"
+"Last-Translator: Robert Antoni Buj Gelonch <[email protected]>, 2019\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"
diff --git a/help/ca@valencia/[email protected] b/help/ca@valencia/[email protected]
index 9fc5fe4..9aa13f6 100644
--- a/help/ca@valencia/[email protected]
+++ b/help/ca@valencia/[email protected]
@@ -9,7 +9,7 @@ msgstr ""
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
 "Last-Translator: Jose Alfredo Murcia Andrés <[email protected]>, 2018\n"
-"Language-Team: Catalan (Valencian) (https://www.transifex.com/mate/teams/13566/ca%40valencia/)\n"
+"Language-Team: Catalan (Valencian) (https://www.transifex.com/mate/teams/13566/ca@valencia/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/help/es/es.po b/help/es/es.po
index faf438d..2666bb8 100644
--- a/help/es/es.po
+++ b/help/es/es.po
@@ -1,5 +1,5 @@
 # Translators:
-# Adolfo Jayme-Barrientos, 2018
+# Fito JB, 2018
 # Joel Barrios <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Lluís Tusquellas <[email protected]>, 2018
diff --git a/help/hu/hu.po b/help/hu/hu.po
index 77ced66..dd0f628 100644
--- a/help/hu/hu.po
+++ b/help/hu/hu.po
@@ -3,13 +3,14 @@
 # Balázs Meskó <[email protected]>, 2018
 # Rezső Páder <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
+# Csaba Székely <[email protected]>, 2019
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
-"Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
+"Last-Translator: Csaba Székely <[email protected]>, 2019\n"
 "Language-Team: Hungarian (https://www.transifex.com/mate/teams/13566/hu/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -547,7 +548,7 @@ msgstr ""
 #. (itstool) path: td/p
 #: C/functions.page:28
 msgid "abs"
-msgstr ""
+msgstr "abs"
 
 #. (itstool) path: td/p
 #: C/functions.page:29
@@ -717,7 +718,7 @@ msgstr "Felhasználói felület"
 #. (itstool) path: section/title
 #: C/index.page:20
 msgid "Equations"
-msgstr ""
+msgstr "Egyenletek"
 
 #. (itstool) path: section/title
 #: C/index.page:24
@@ -732,7 +733,7 @@ msgstr ""
 #. (itstool) path: section/title
 #: C/index.page:32
 msgid "Financial Calculations"
-msgstr ""
+msgstr "Pénzügyi számítások"
 
 #. (itstool) path: page/title
 #: C/keyboard.page:9
@@ -743,6 +744,7 @@ msgstr ""
 #: C/keyboard.page:11
 msgid "All mathematical equations can be entered using the keyboard."
 msgstr ""
+"Minden matematikai egyenletet a billentyűzet segítségével lehet megadni."
 
 #. (itstool) path: page/p
 #: C/keyboard.page:14
@@ -842,7 +844,7 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/logarithm.page:15
 msgid "log 100"
-msgstr ""
+msgstr "log 100"
 
 #. (itstool) path: page/p
 #: C/logarithm.page:19
@@ -854,12 +856,12 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/logarithm.page:23
 msgid "log₂ 32"
-msgstr ""
+msgstr "log₂ 32"
 
 #. (itstool) path: page/p
 #: C/logarithm.page:27
 msgid "To calculate a natural logarithm use the ln function."
-msgstr ""
+msgstr "A természetes logaritmus kiszámításához használja az ln függvényt."
 
 #. (itstool) path: example/p
 #: C/logarithm.page:31
@@ -876,7 +878,7 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/logarithm.page:39
 msgid "e^1.32"
-msgstr ""
+msgstr "e^1.32"
 
 #. (itstool) path: page/title
 #: C/modulus.page:9
@@ -1036,7 +1038,7 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/percentage.page:9
 msgid "Percentages"
-msgstr ""
+msgstr "Százalékok"
 
 #. (itstool) path: page/p
 #: C/percentage.page:11
@@ -1107,7 +1109,7 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/power.page:32
 msgid "5^(6−2)"
-msgstr ""
+msgstr "5^(6−2)"
 
 #. (itstool) path: page/p
 #: C/power.page:36
@@ -1126,7 +1128,7 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/power.page:43
 msgid "√2"
-msgstr ""
+msgstr "√2"
 
 #. (itstool) path: page/p
 #: C/power.page:47
@@ -1138,7 +1140,7 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/power.page:51
 msgid "₃√2"
-msgstr ""
+msgstr "₃√2"
 
 #. (itstool) path: page/title
 #: C/scientific.page:9
@@ -1332,12 +1334,12 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/variables.page:28
 msgid "6x+3"
-msgstr ""
+msgstr "6x+3"
 
 #. (itstool) path: example/p
 #: C/variables.page:31
 msgid "xy−3x+7y−21"
-msgstr ""
+msgstr "xy−3x+7y−21"
 
 #. (itstool) path: page/p
 #: C/variables.page:35
diff --git a/help/ie/ie.po b/help/ie/ie.po
new file mode 100644
index 0000000..5a92120
--- /dev/null
+++ b/help/ie/ie.po
@@ -0,0 +1,1369 @@
+# Translators:
+# Ольга Смирнова, 2019
+# 
+msgid ""
+msgstr ""
+"Project-Id-Version: MATE Desktop Environment\n"
+"POT-Creation-Date: 2018-10-03 14:33+0200\n"
+"PO-Revision-Date: 2018-10-01 16:45+0000\n"
+"Last-Translator: Ольга Смирнова, 2019\n"
+"Language-Team: Interlingue (https://www.transifex.com/mate/teams/13566/ie/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: ie\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. Put one translator per line, in the form NAME <EMAIL>, YEAR1, YEAR2
+msgctxt "_"
+msgid "translator-credits"
+msgstr "OIS <[email protected]>, 2019"
+
+#. (itstool) path: page/title
+#: C/absolute.page:9
+msgid "Absolute Values"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/absolute.page:11
+msgid ""
+"Absolute values are calculated using the | symbol or abs <link "
+"xref=\"function\">function</link>."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/absolute.page:15
+msgid "|−1|"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/absolute.page:18
+msgid "abs (−1)"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/base.page:9 C/conv-base.page:9
+msgid "Number Bases"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/base.page:11
+msgid ""
+"To enter numbers in a particular number base use <link "
+"xref=\"superscript\">subscript numbers</link>. The following numbers are "
+"equivalent."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/base.page:16
+msgid "1001011₂"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/base.page:19
+msgid "113₈"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/base.page:22
+msgid "75"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/base.page:25
+msgid "4B₁₆"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/base.page:29
+msgid ""
+"When in <link xref=\"mouse\">programming mode</link> there are buttons for "
+"binary (<keyseq><key>Ctrl</key><key>B</key></keyseq>), octal "
+"(<keyseq><key>Ctrl</key><key>O</key></keyseq>) and hexadecimal "
+"(<keyseq><key>Ctrl</key><key>H</key></keyseq>)."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/base.page:32
+msgid ""
+"To set the base that results are shown in change the <link xref=\"number-"
+"display\">result format</link>."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/base.page:35
+msgid ""
+"To change the base of the current result use a base button or "
+"<keyseq><key>Ctrl</key><key>D</key></keyseq> to show in decimal form."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/boolean.page:9
+msgid "Boolean Algebra"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/boolean.page:11
+msgid "Boolean algebra can be calculated using the AND, OR and XOR operators."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/boolean.page:15
+msgid "010011₂ AND 110101₂"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/boolean.page:19
+msgid ""
+"Buttons for these symbols are available in <link xref=\"mouse\">programming "
+"mode</link>."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/boolean.page:22
+msgid ""
+"The NOT <link xref=\"function\">function</link> inverts the bits in a "
+"number. The word size is set from the "
+"<guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/boolean.page:27
+msgid "NOT 010011₂"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/complex.page:9
+msgid "Complex Numbers"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/complex.page:11
+msgid "Complex numbers are not supported in <app>MATE Calculator</app>."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/conv-base.page:11
+msgid ""
+"To convert between number bases enter a number (or solve an equation) and "
+"change the <link xref=\"number-display\">result format</link> from the "
+"<guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/conv-character.page:9
+msgid "Character Codes"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/conv-character.page:11
+msgid ""
+"When in <link xref=\"mouse\">programming mode</link> the <gui>á</gui> button"
+" opens a dialog to convert characters to character codes."
+msgstr ""
+
+#. (itstool) path: note/p
+#: C/conv-character.page:15
+msgid "Characters cannot be converted using the keyboard."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/conv-currency.page:9
+msgid "Currency"
+msgstr "Valuta"
+
+#. (itstool) path: page/p
+#: C/conv-currency.page:11
+msgid ""
+"To convert currencies, enter the <link xref=\"financial\">financial "
+"mode</link>, and use the currency controls."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/conv-currency.page:14
+msgid ""
+"You can also convert currencies using the keyboard and the <em>in</em> "
+"operator."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/conv-currency.page:18
+msgid "13.65 USD in GBP"
+msgstr ""
+
+#. (itstool) path: note/p
+#: C/conv-currency.page:23
+msgid ""
+"Currency information is approximate and should not be used for making "
+"financial decisions."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/conv-length.page:9
+msgid "Length/Area/Volume"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/conv-length.page:11
+msgid ""
+"To convert between length, area and volume units use the <em>in</em> "
+"operator."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/conv-length.page:15
+msgid "6 meters in inches"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/conv-length.page:18
+msgid "1 acre in cm²"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/conv-length.page:21
+msgid "1 pint in mL"
+msgstr ""
+
+#. (itstool) path: note/p
+#: C/conv-length.page:26
+msgid "Length/Area/Volume conversions must be performed using the keyboard."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/conv-time.page:9
+msgid "Time"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/conv-time.page:11
+msgid "To convert between time use the <em>in</em> operator."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/conv-time.page:15
+msgid "3 years in hours"
+msgstr ""
+
+#. (itstool) path: note/p
+#: C/conv-time.page:20
+msgid "Time conversions must be performed using the keyboard."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/conv-weight.page:9
+msgid "Mass"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/conv-weight.page:11
+msgid "To convert between mass use the <em>in</em> operator."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/conv-weight.page:15
+msgid "1kg in pounds"
+msgstr ""
+
+#. (itstool) path: note/p
+#: C/conv-weight.page:20
+msgid "Mass conversions must be performed using the keyboard."
+msgstr ""
+
+#. (itstool) path: info/title
+#: C/equation.page:7
+msgctxt "sort"
+msgid "0"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/equation.page:11
+msgid "Basic Equations"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/equation.page:13
+msgid ""
+"Equations are entered in standard mathematical form. For example to add 7 "
+"and 2 enter the following:"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/equation.page:18
+msgid "7+2"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/equation.page:22
+msgid ""
+"To solve, press the <gui>=</gui> button with your mouse or the "
+"<key>Enter</key> key on your keyboard."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/equation.page:25
+msgid ""
+"Calculations are performed in mathematical order - multiplication and "
+"division are performed before addition and subtraction. The following "
+"equation solves to 1 (3×2 = 6, 7−6 = 1)."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/equation.page:30
+msgid "7−3×2"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/equation.page:34
+msgid ""
+"To change the order of calculation use parenthesis. The following equation "
+"solves to 8 (7−3 = 4, 4×2 = 8)."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/equation.page:39
+msgid "(7−3)×2"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/equation.page:43
+msgid ""
+"To clear the display press the <gui>Clr</gui> button or <key>Escape</key>."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/factorial.page:9
+msgid "Factorials"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/factorial.page:11
+msgid ""
+"Factorials are entered using the ! symbol. To calculate the factorial of 6 "
+"enter the following."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/factorial.page:16
+msgid "6!"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/factorize.page:9
+msgid "Factorization"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/factorize.page:11
+msgid ""
+"You can factorize the number currently displayed by pressing the "
+"<gui>fact</gui> button. This button is visible in <link "
+"xref=\"mouse\">programming mode</link>."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/financial.page:9
+msgid "Financial Functions"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/financial.page:10
+msgid "When in financial mode the following buttons are available."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:15
+msgid "Ctrm"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:16
+msgid ""
+"Calculate 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 ""
+
+#. (itstool) path: td/p
+#: C/financial.page:19
+msgid "Ddb"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:20
+msgid ""
+"Calculate the depreciation allowance on an asset for a specified period of "
+"time, using the double-declining balance method."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:23
+msgid "Fv"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:24
+msgid ""
+"Calculate the future value of an investment based on a series of equal "
+"payments at a periodic interest rate over the number of payment periods in "
+"the term."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:27
+msgid "Gpm"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:28
+msgid ""
+"Calculate the resale price of a product, based on the product cost and the "
+"wanted gross profit margin."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:31
+msgid "Pmt"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:32
+msgid ""
+"Calculate the amount of the periodic payment of a loan, where payments are "
+"made at the end of each payment period."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:35
+msgid "Pv"
+msgstr "Pv"
+
+#. (itstool) path: td/p
+#: C/financial.page:36
+msgid ""
+"Calculate the present value of an investment based on a series of equal "
+"payments discounted at a periodic interest rate over the number of payment "
+"periods in the term."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:39
+msgid "Rate"
+msgstr "Percentage"
+
+#. (itstool) path: td/p
+#: C/financial.page:40
+msgid ""
+"Calculate the periodic interest necessary to increase an investment to a "
+"future value, over the number of compounding periods."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:43
+msgid "Sln"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:44
+msgid ""
+"Calculate the straight-line depreciation of an asset for one period. The "
+"straight-line method of depreciation divides the depreciable cost evenly "
+"over the useful life of an asset. The useful life is the number of periods, "
+"typically years, over which an asset is depreciated."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:47
+msgid "Syd"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:48
+msgid ""
+"Calculate the depreciation allowance on an asset for a specified period of "
+"time, using the Sum-of-the-Years'-Digits method. This method of depreciation"
+" accelerates the rate of depreciation, so that more depreciation expense "
+"occurs in earlier periods than in later ones. The useful life is the number "
+"of periods, typically years, over which an asset is depreciated."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/financial.page:51
+msgid "Term"
+msgstr "Termine"
+
+#. (itstool) path: td/p
+#: C/financial.page:52
+msgid ""
+"Calculate the number of payment periods that are necessary during the term "
+"of an ordinary annuity, to accumulate a future value, at a periodic interest"
+" rate."
+msgstr ""
+
+#. (itstool) path: note/p
+#: C/financial.page:56
+msgid "Financial functions cannot be performed using the keyboard."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/functions.page:9
+msgid "Functions"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/functions.page:11
+msgid ""
+"Functions can be used by inserting the name of the function followed by the "
+"function argument. If the argument is not a number or <link "
+"xref=\"variable\">variable</link> then use parenthesis around the argument."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/functions.page:16
+msgid "sin 30"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/functions.page:19
+msgid "abs (5−9)"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/functions.page:23
+msgid "The following functions are defined."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:28
+msgid "abs"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:29
+msgid "<link xref=\"absolute\">Absolute Value</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:32
+msgid "cos"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:33
+msgid "<link xref=\"trigonometry\">Cosine</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:36
+msgid "cosh"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:37
+msgid "<link xref=\"trigonometry\">Hyperbolic Cosine</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:40
+msgid "frac"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:41
+msgid "Fractional Component"
+msgstr "Fractional parte"
+
+#. (itstool) path: td/p
+#: C/functions.page:44
+msgid "int"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:45
+msgid "Integer Component"
+msgstr "Integral parte"
+
+#. (itstool) path: td/p
+#: C/functions.page:48
+msgid "ln"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:49
+msgid "<link xref=\"logarithm\">Natural Logarithm</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:52
+msgid "log"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:53
+msgid "<link xref=\"logarithm\">Logarithm</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:56
+msgid "not"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:57
+msgid "<link xref=\"boolean\">Boolean NOT</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:60
+msgid "ones"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:61
+msgid "Ones complement"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:64
+msgid "sin"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:65
+msgid "<link xref=\"trigonometry\">Sine</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:68
+msgid "sinh"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:69
+msgid "<link xref=\"trigonometry\">Hyperbolic Sine</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:72
+msgid "sqrt"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:73
+msgid "<link xref=\"power\">Square Root</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:76
+msgid "tan"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:77
+msgid "<link xref=\"trigonometry\">Tangent</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:80
+msgid "tanh"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:81
+msgid "<link xref=\"trigonometry\">Hyperbolic Tangent</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:84
+msgid "twos"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/functions.page:85
+msgid "Twos complement"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/functions.page:88
+msgid "<app>MATE Calculator</app> does not support user-defined functions."
+msgstr ""
+
+#. (itstool) path: credit/name
+#: C/index.page:7
+msgid "Robert Ancell"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/index.page:13
+msgid "MATE Calculator Help"
+msgstr ""
+
+#. (itstool) path: section/title
+#: C/index.page:16
+msgid "User Interface"
+msgstr ""
+
+#. (itstool) path: section/title
+#: C/index.page:20
+msgid "Equations"
+msgstr ""
+
+#. (itstool) path: section/title
+#: C/index.page:24
+msgid "Numbers"
+msgstr "Numerós"
+
+#. (itstool) path: section/title
+#: C/index.page:28
+msgid "Conversions"
+msgstr ""
+
+#. (itstool) path: section/title
+#: C/index.page:32
+msgid "Financial Calculations"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/keyboard.page:9
+msgid "Using the Keyboard"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/keyboard.page:11
+msgid "All mathematical equations can be entered using the keyboard."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/keyboard.page:14
+msgid ""
+"The following key combinations can be used to enter keys that may not be "
+"available on your keyboard."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:19
+msgid "×"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:20
+msgid "<key>*</key>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:23
+msgid "÷"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:24
+msgid "<key>/</key>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:27
+msgid "^"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:28
+msgid "<key>*</key> twice"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:31
+msgid "√"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:32
+msgid "<keyseq><key>Ctrl</key><key>R</key></keyseq>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:35 C/variables.page:48
+msgid "π"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/keyboard.page:36
+msgid "<keyseq><key>Ctrl</key><key>P</key></keyseq>"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/keyboard.page:39
+msgid ""
+"To enter <link xref=\"superscript\">superscript numbers</link> use "
+"<keyseq><key>Ctrl</key>number</keyseq>, for subscript use "
+"<keyseq><key>Alt</key>number</keyseq>."
+msgstr ""
+
+#. (itstool) path: p/link
+#: C/legal.xml:4
+msgid "Creative Commons Attribution-Share Alike 3.0 Unported License"
+msgstr ""
+
+#. (itstool) path: license/p
+#: C/legal.xml:3
+msgid "This work is licensed under a <_:link-1/>."
+msgstr ""
+
+#. (itstool) path: license/p
+#: C/legal.xml:6
+msgid ""
+"As a special exception, the copyright holders give you permission to copy, "
+"modify, and distribute the example code contained in this document under the"
+" terms of your choosing, without restriction."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/logarithm.page:9
+msgid "Logarithms"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/logarithm.page:11
+msgid ""
+"Logarithms can be calculated using the log <link "
+"xref=\"function\">function</link>."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/logarithm.page:15
+msgid "log 100"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/logarithm.page:19
+msgid ""
+"To calculate a logarithm in a different base use a <link "
+"xref=\"superscript\">subscript number</link> after the function."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/logarithm.page:23
+msgid "log₂ 32"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/logarithm.page:27
+msgid "To calculate a natural logarithm use the ln function."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/logarithm.page:31
+msgid "ln 1.32"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/logarithm.page:35
+msgid ""
+"Euler's number can be entered by using the <link "
+"xref=\"variable\">variable</link> e."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/logarithm.page:39
+msgid "e^1.32"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/modulus.page:9
+msgid "Modulus Division"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/modulus.page:11
+msgid "Modulus division is performed using the mod operator."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/modulus.page:15
+msgid "9 mod 5"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/mouse.page:9
+msgid "Using the Mouse"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/mouse.page:11
+msgid ""
+"All equations can be entered using the mouse. To access all buttons there "
+"are a number of modes that can be selected from the <gui>Mode</gui> menu."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/mouse.page:17
+msgid "Basic"
+msgstr "Basic"
+
+#. (itstool) path: td/p
+#: C/mouse.page:18
+msgid ""
+"Provides buttons suitable for <link xref=\"equation\">basic equations</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/mouse.page:21
+msgid "Advanced"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/mouse.page:22
+msgid ""
+"Provides buttons suitable for advanced mathematics such as <link "
+"xref=\"trigonometry\"/>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/mouse.page:25
+msgid "Financial"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/mouse.page:26
+msgid ""
+"Provides buttons suitable for <link xref=\"financial\">financial "
+"equations</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/mouse.page:29
+msgid "Programming"
+msgstr "Programmation"
+
+#. (itstool) path: td/p
+#: C/mouse.page:30
+msgid "Provides buttons suitable for computer programmers"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/number-display.page:9
+msgid "Result Format"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/number-display.page:11
+msgid ""
+"The format used to display results can be changed from the "
+"<guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/number-display.page:16
+msgid "Decimal"
+msgstr "Decimal"
+
+#. (itstool) path: td/p
+#: C/number-display.page:17
+msgid "Results are displayed as decimal numbers"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/number-display.page:20
+msgid "Scientific"
+msgstr "Scientific"
+
+#. (itstool) path: td/p
+#: C/number-display.page:21
+msgid ""
+"Results are displayed in <link xref=\"scientific\">scientific "
+"notation</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/number-display.page:24
+msgid "Engineering"
+msgstr "Ingenieric"
+
+#. (itstool) path: td/p
+#: C/number-display.page:25
+msgid ""
+"Results are displayed in scientific notation except the exponent is always a"
+" multiple of three"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/number-display.page:28
+msgid "Binary"
+msgstr "Binari"
+
+#. (itstool) path: td/p
+#: C/number-display.page:29
+msgid "Results are displayed as <link xref=\"base\">binary numbers</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/number-display.page:32
+msgid "Octal"
+msgstr "Octal"
+
+#. (itstool) path: td/p
+#: C/number-display.page:33
+msgid "Results are displayed as <link xref=\"base\">octal numbers</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/number-display.page:36
+msgid "Hexadecimal"
+msgstr "Hexadecimal"
+
+#. (itstool) path: td/p
+#: C/number-display.page:37
+msgid "Results are displayed as <link xref=\"base\">hexadecimal numbers</link>"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/number-display.page:40
+msgid ""
+"The number of decimal places, if trailing zeroes and if thousands separators"
+" are shown can also be configured."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/percentage.page:9
+msgid "Percentages"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/percentage.page:11
+msgid "Percentages are calculated using the % symbol."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/percentage.page:14
+msgid ""
+"When added or subtracted the percentage symbol resolves to one percent of "
+"the value being added or subtracted from. The following equation calculates "
+"the price of a $140 item with 15% tax (140 + (15÷100)×140)."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/percentage.page:19
+msgid "140+15%"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/percentage.page:23
+msgid ""
+"In all other cases the percentage symbol resolves to a fraction out of 100. "
+"The following equation calculates one quarter of 80 apples ((25÷100)×80)."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/percentage.page:28
+msgid "25%×80"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/power.page:9
+msgid "Powers and Roots"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/power.page:11
+msgid ""
+"Powers are entered by putting a <link xref=\"superscript\">superscript "
+"number</link> after the value."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/power.page:15
+msgid "5²"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/power.page:19
+msgid ""
+"The inverse of a number can be entered using the inverse symbol ⁻¹ "
+"(<keyseq><key>Ctrl</key><key>I</key></keyseq>)."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/power.page:23
+msgid "3⁻¹"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/power.page:27
+msgid ""
+"Powers can also be calculated using the ^ symbol. This allows the power to "
+"be an equation."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/power.page:32
+msgid "5^(6−2)"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/power.page:36
+msgid ""
+"If your keyboard does not have a <key>^</key> key you can use <key>*</key> "
+"twice."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/power.page:39
+msgid ""
+"Square roots can be calculated using the symbol "
+"(<keyseq><key>Ctrl</key><key>R</key></keyseq>)."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/power.page:43
+msgid "√2"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/power.page:47
+msgid ""
+"n-th roots can be calculated by putting a <link "
+"xref=\"superscript\">subscript number</link> before the root sign."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/power.page:51
+msgid "₃√2"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/scientific.page:9
+msgid "Scientific Notation"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/scientific.page:11
+msgid ""
+"To enter numbers in scientific format use the <gui>×10x</gui> button "
+"(<keyseq><key>Ctrl</key><key>E</key></keyseq>). The <link "
+"xref=\"superscript\">number mode</link> automatically changes to "
+"superscript. To enter 2×10¹⁰⁰, start by entering the mantissa (2):"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/scientific.page:17
+msgid "2"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/scientific.page:21
+msgid ""
+"Then press the scientific notation button (or press "
+"<keyseq><key>Ctrl</key><key>E</key></keyseq>):"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/scientific.page:25
+msgid "2×10"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/scientific.page:29
+msgid "Then enter the exponent (100):"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/scientific.page:33
+msgid "2×10¹⁰⁰"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/scientific.page:37
+msgid ""
+"To show results in scientific form change the <link xref=\"number-"
+"display\">result format</link>."
+msgstr ""
+
+#. (itstool) path: info/title
+#: C/superscript.page:7
+msgctxt "sort"
+msgid "_"
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/superscript.page:11
+msgid "Superscript and Subscript"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/superscript.page:13
+msgid ""
+"Some equations may require numbers to be entered in superscript or subscript"
+" form. e.g."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/superscript.page:17
+msgid ""
+"<math alttext=\"x³+2x²−5\"> <mrow> <msup> <mi>x</mi> <mn>3</mn> </msup> "
+"<mo>+</mo> <mrow> <mn>2</mn> <msup> <mi>x</mi> <mn>2</mn> </msup> </mrow> "
+"<mo>-</mo> <mn>5</mn> </mrow> </math>"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/superscript.page:38
+msgid ""
+"To enter superscript numbers with the mouse select the number mode using the"
+" <gui>↑n</gui> and <gui>↓n</gui> buttons. When one of these modes is active "
+"clicking the number buttons will enter numbers in superscript or subscript. "
+"To return to normal number mode click the active button."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/superscript.page:43
+msgid ""
+"To enter superscript numbers with the keyboard hold down <key>Ctrl</key> "
+"while entering the number. Hold <key>Alt</key> for subscript."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/superscript.page:47
+msgid ""
+"The number mode returns to normal when entering the next non-number "
+"character (e.g. +)."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/trigonometry.page:9
+msgid "Trigonometry"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/trigonometry.page:11
+msgid ""
+"Trigonometry can be performed using the sin, cos, and tan <link "
+"xref=\"function\">function</link>."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/trigonometry.page:15
+msgid "sin 45"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/trigonometry.page:19
+msgid ""
+"The angle units used can be changed from the "
+"<guiseq><gui>Calculator</gui><gui>Preferences</gui></guiseq> menu. "
+"Trigonometry buttons are visible when in <link xref=\"mouse\">Advanced "
+"mode</link>."
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/trigonometry.page:23
+msgid ""
+"Hyperbolic functions are available by adding \"h\" to the end of a function."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/trigonometry.page:27
+msgid "sinh 0.34"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/trigonometry.page:31
+msgid ""
+"Inverse functions are entered either using the inverse symbol ⁻¹ "
+"(<keyseq><key>Ctrl</key><key>I</key></keyseq>) or the \"a\" form of the "
+"function. The following two equations are equivalent."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/trigonometry.page:36
+msgid "sin⁻¹ 0.5"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/trigonometry.page:39
+msgid "asin 0.5"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/trigonometry.page:43
+msgid ""
+"To enter <link xref=\"variable\">π</link> with the keyboard use "
+"<keyseq><key>Ctrl</key><key>P</key></keyseq>."
+msgstr ""
+
+#. (itstool) path: page/title
+#: C/variables.page:9
+msgid "Variables"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/variables.page:11
+msgid ""
+"To assign a value to a variable use the = symbol or choose the variable to "
+"assign to with the <gui>x</gui> button in <link xref=\"mouse\">advanced "
+"mode</link>. A variable name must only contain upper or lower characters."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/variables.page:16
+msgid "x=5"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/variables.page:19
+msgid "value=82"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/variables.page:23
+msgid ""
+"Variables can be used in any equation and are substituted for their assigned"
+" value. Variables can be inserted using the <gui>x</gui> button."
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/variables.page:28
+msgid "6x+3"
+msgstr ""
+
+#. (itstool) path: example/p
+#: C/variables.page:31
+msgid "xy−3x+7y−21"
+msgstr ""
+
+#. (itstool) path: page/p
+#: C/variables.page:35
+msgid "The following variables are always defined."
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:40
+msgid "ans"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:41
+msgid "Result of previous calculation"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:44
+msgid "e"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:45
+msgid "<link xref=\"logarithm\">Euler's Number</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:49
+msgid "<link xref=\"trigonometry\">Pi</link>"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:52
+msgid "rand"
+msgstr ""
+
+#. (itstool) path: td/p
+#: C/variables.page:53
+msgid "Random value in the range [0,1] (changes on each read)"
+msgstr ""
diff --git a/help/it/it.po b/help/it/it.po
index 0d78d87..8fe7dc1 100644
--- a/help/it/it.po
+++ b/help/it/it.po
@@ -2,13 +2,15 @@
 # Marco Z. <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Dario Di Nucci <[email protected]>, 2018
+# andrea pittaro <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
-"Last-Translator: Dario Di Nucci <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Italian (https://www.transifex.com/mate/teams/13566/it/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -24,7 +26,7 @@ msgstr "Riconoscimenti-tradutore"
 #. (itstool) path: page/title
 #: C/absolute.page:9
 msgid "Absolute Values"
-msgstr ""
+msgstr "Valori assoluti"
 
 #. (itstool) path: page/p
 #: C/absolute.page:11
@@ -32,21 +34,23 @@ msgid ""
 "Absolute values are calculated using the | symbol or abs <link "
 "xref=\"function\">function</link>."
 msgstr ""
+"I valori assoluti sono calcolati usando il simbolo | o la <link "
+"xref=\"function\"> funzione </link> abs"
 
 #. (itstool) path: example/p
 #: C/absolute.page:15
 msgid "|−1|"
-msgstr ""
+msgstr "|-1|"
 
 #. (itstool) path: example/p
 #: C/absolute.page:18
 msgid "abs (−1)"
-msgstr ""
+msgstr "abs(-1)"
 
 #. (itstool) path: page/title
 #: C/base.page:9 C/conv-base.page:9
 msgid "Number Bases"
-msgstr ""
+msgstr "Basi  di calcolo"
 
 #. (itstool) path: page/p
 #: C/base.page:11
@@ -55,26 +59,28 @@ msgid ""
 "xref=\"superscript\">subscript numbers</link>. The following numbers are "
 "equivalent."
 msgstr ""
+"Per inserire un numero in una base particolare, usa il numero<link "
+"xref=\"superscript\"> con il pedice </link>"
 
 #. (itstool) path: example/p
 #: C/base.page:16
 msgid "1001011₂"
-msgstr ""
+msgstr "1001011₂"
 
 #. (itstool) path: example/p
 #: C/base.page:19
 msgid "113₈"
-msgstr ""
+msgstr "113₈"
 
 #. (itstool) path: example/p
 #: C/base.page:22
 msgid "75"
-msgstr ""
+msgstr "75"
 
 #. (itstool) path: example/p
 #: C/base.page:25
 msgid "4B₁₆"
-msgstr ""
+msgstr "4B₁₆"
 
 #. (itstool) path: page/p
 #: C/base.page:29
@@ -84,6 +90,10 @@ msgid ""
 "(<keyseq><key>Ctrl</key><key>O</key></keyseq>) and hexadecimal "
 "(<keyseq><key>Ctrl</key><key>H</key></keyseq>)."
 msgstr ""
+"Quando in <link xref=\"mouse\"> hai selezionato la modalità programmazione "
+"</link>, troverai pulsanti per la base 2 (<keyseq><key> Ctrl </key><key> B "
+"</key></keyseq>), base 8 (<keyseq><key> Ctrl </key><key> O </key></keyseq>) "
+"e esadecimale (<keyseq><key> Ctrl </key><key> H </key></keyseq>)"
 
 #. (itstool) path: page/p
 #: C/base.page:32
@@ -91,6 +101,8 @@ msgid ""
 "To set the base that results are shown in change the <link xref=\"number-"
 "display\">result format</link>."
 msgstr ""
+"Per impostare la base con cui mostrare i risultati <link xref=\"number-"
+"display\"> seleziona il formato </link>."
 
 #. (itstool) path: page/p
 #: C/base.page:35
@@ -102,17 +114,18 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/boolean.page:9
 msgid "Boolean Algebra"
-msgstr ""
+msgstr "Algebra booleana"
 
 #. (itstool) path: page/p
 #: C/boolean.page:11
 msgid "Boolean algebra can be calculated using the AND, OR and XOR operators."
 msgstr ""
+"L'algebra booleana può essere calcolata usando gli operatori AND, OR e XOR."
 
 #. (itstool) path: example/p
 #: C/boolean.page:15
 msgid "010011₂ AND 110101₂"
-msgstr ""
+msgstr "010011₂ AND 110101₂"
 
 #. (itstool) path: page/p
 #: C/boolean.page:19
@@ -137,12 +150,13 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/complex.page:9
 msgid "Complex Numbers"
-msgstr ""
+msgstr "Numeri complessi"
 
 #. (itstool) path: page/p
 #: C/complex.page:11
 msgid "Complex numbers are not supported in <app>MATE Calculator</app>."
 msgstr ""
+"I numeri complessi non sono supportati in <app> Calcolatrice di Mate </app>."
 
 #. (itstool) path: page/p
 #: C/conv-base.page:11
@@ -245,27 +259,27 @@ msgstr ""
 #. (itstool) path: example/p
 #: C/conv-time.page:15
 msgid "3 years in hours"
-msgstr ""
+msgstr "3 anni in ore"
 
 #. (itstool) path: note/p
 #: C/conv-time.page:20
 msgid "Time conversions must be performed using the keyboard."
-msgstr ""
+msgstr "le conversioni temporali devono essere effettuate usando la tastiera"
 
 #. (itstool) path: page/title
 #: C/conv-weight.page:9
 msgid "Mass"
-msgstr ""
+msgstr "massa"
 
 #. (itstool) path: page/p
 #: C/conv-weight.page:11
 msgid "To convert between mass use the <em>in</em> operator."
-msgstr ""
+msgstr "Per convertire la massa, usa l'operatore <em> in </em>"
 
 #. (itstool) path: example/p
 #: C/conv-weight.page:15
 msgid "1kg in pounds"
-msgstr ""
+msgstr "1 Kg in pounds"
 
 #. (itstool) path: note/p
 #: C/conv-weight.page:20
@@ -281,7 +295,7 @@ msgstr "0"
 #. (itstool) path: page/title
 #: C/equation.page:11
 msgid "Basic Equations"
-msgstr ""
+msgstr "Equazioni basilari"
 
 #. (itstool) path: page/p
 #: C/equation.page:13
@@ -289,11 +303,13 @@ msgid ""
 "Equations are entered in standard mathematical form. For example to add 7 "
 "and 2 enter the following:"
 msgstr ""
+"Le equazioni sono scritte in forma matematica normale. Per esempio, per "
+"sommare 7 e 2, inserisci il seguente testo:"
 
 #. (itstool) path: example/p
 #: C/equation.page:18
 msgid "7+2"
-msgstr ""
+msgstr "7+2"
 
 #. (itstool) path: page/p
 #: C/equation.page:22
@@ -301,6 +317,8 @@ msgid ""
 "To solve, press the <gui>=</gui> button with your mouse or the "
 "<key>Enter</key> key on your keyboard."
 msgstr ""
+"Per risolvere l'equazione premi <gui>=</gui> con il mouse o premi il tasto "
+"Invio nella tastiera."
 
 #. (itstool) path: page/p
 #: C/equation.page:25
@@ -309,11 +327,14 @@ msgid ""
 "division are performed before addition and subtraction. The following "
 "equation solves to 1 (3×2 = 6, 7−6 = 1)."
 msgstr ""
+"Le operazioni sono eseguite nell'ordine matematico standard: moltiplicazioni"
+" e divisioni  vengono effettuate prima di addizioni e sottrazioni. "
+"L'equazione seguente dà come risultato 1 ( 3x2=6 e 7-6=1)"
 
 #. (itstool) path: example/p
 #: C/equation.page:30
 msgid "7−3×2"
-msgstr ""
+msgstr "7−3×2"
 
 #. (itstool) path: page/p
 #: C/equation.page:34
@@ -321,22 +342,26 @@ msgid ""
 "To change the order of calculation use parenthesis. The following equation "
 "solves to 8 (7−3 = 4, 4×2 = 8)."
 msgstr ""
+"Per cambiare l'ordine delle operazioni usa le arentesi. L'equazione seguente"
+" da come risultato 8 (7-3=4 4x2=8)."
 
 #. (itstool) path: example/p
 #: C/equation.page:39
 msgid "(7−3)×2"
-msgstr ""
+msgstr "(7−3)×2"
 
 #. (itstool) path: page/p
 #: C/equation.page:43
 msgid ""
 "To clear the display press the <gui>Clr</gui> button or <key>Escape</key>."
 msgstr ""
+"Per ripulire l'area delle equazioni, premi il pulsante <gui> Clr</gui> o il "
+"tasto <key>Esc</key>"
 
 #. (itstool) path: page/title
 #: C/factorial.page:9
 msgid "Factorials"
-msgstr ""
+msgstr "Fattoriali"
 
 #. (itstool) path: page/p
 #: C/factorial.page:11
@@ -344,16 +369,18 @@ msgid ""
 "Factorials are entered using the ! symbol. To calculate the factorial of 6 "
 "enter the following."
 msgstr ""
+"I fattoriali sono espressi con il punto esclamativo (!). Per calcolare il "
+"fattoriale di 6, scrivi:"
 
 #. (itstool) path: example/p
 #: C/factorial.page:16
 msgid "6!"
-msgstr ""
+msgstr "6!"
 
 #. (itstool) path: page/title
 #: C/factorize.page:9
 msgid "Factorization"
-msgstr ""
+msgstr "Fattorizzazione"
 
 #. (itstool) path: page/p
 #: C/factorize.page:11
@@ -1368,4 +1395,4 @@ msgstr ""
 #. (itstool) path: td/p
 #: C/variables.page:53
 msgid "Random value in the range [0,1] (changes on each read)"
-msgstr ""
+msgstr "Valore casuale nell'intervallo [0,1] (cambia a ogni esecuzione)"
diff --git a/help/pt/pt.po b/help/pt/pt.po
index f20a15c..1fa1df9 100644
--- a/help/pt/pt.po
+++ b/help/pt/pt.po
@@ -1,6 +1,6 @@
 # Translators:
 # Sérgio Marques <[email protected]>, 2018
-# MS <[email protected]>, 2018
+# Manuela Silva <[email protected]>, 2018
 # Carlos Moreira, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # alfalb_mansil, 2018
diff --git a/help/pt_BR/pt_BR.po b/help/pt_BR/pt_BR.po
index 15a4ff1..b50550d 100644
--- a/help/pt_BR/pt_BR.po
+++ b/help/pt_BR/pt_BR.po
@@ -3,13 +3,14 @@
 # Stefano Karapetsas <[email protected]>, 2018
 # Matheus Macabu <[email protected]>, 2018
 # Marcelo Ghelman <[email protected]>, 2018
+# Lucas Dias <[email protected]>, 2019
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
-"Last-Translator: Marcelo Ghelman <[email protected]>, 2018\n"
+"Last-Translator: Lucas Dias <[email protected]>, 2019\n"
 "Language-Team: Portuguese (Brazil) (https://www.transifex.com/mate/teams/13566/pt_BR/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -47,7 +48,7 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/absolute.page:9
 msgid "Absolute Values"
-msgstr ""
+msgstr "Valores Absolutos"
 
 #. (itstool) path: page/p
 #: C/absolute.page:11
@@ -55,21 +56,22 @@ msgid ""
 "Absolute values are calculated using the | symbol or abs <link "
 "xref=\"function\">function</link>."
 msgstr ""
+"Valores absolutos são calculados usando o símbolo | ou abs(1) function (2)."
 
 #. (itstool) path: example/p
 #: C/absolute.page:15
 msgid "|−1|"
-msgstr ""
+msgstr "|-1|"
 
 #. (itstool) path: example/p
 #: C/absolute.page:18
 msgid "abs (−1)"
-msgstr ""
+msgstr "abs(-1)"
 
 #. (itstool) path: page/title
 #: C/base.page:9 C/conv-base.page:9
 msgid "Number Bases"
-msgstr ""
+msgstr "Bases Numéricas"
 
 #. (itstool) path: page/p
 #: C/base.page:11
@@ -78,6 +80,9 @@ msgid ""
 "xref=\"superscript\">subscript numbers</link>. The following numbers are "
 "equivalent."
 msgstr ""
+"Para inserir números em uma certa base numérica use <link "
+"xref=\"superscript\"> subscription numbers </link>. Os números seguintes são"
+" equivalentes."
 
 #. (itstool) path: example/p
 #: C/base.page:16
@@ -107,6 +112,9 @@ msgid ""
 "(<keyseq><key>Ctrl</key><key>O</key></keyseq>) and hexadecimal "
 "(<keyseq><key>Ctrl</key><key>H</key></keyseq>)."
 msgstr ""
+"Quando no <link xref=\"mouse\"> modo programador</link> há botões para "
+"binários(<keyseq><key>Ctrl</key><key>B</key></keyseq>),octal(<keyseq><key>Ctrl</key><key>O</key></keyseq>)"
+" e hexadecimal(<keyseq><key>Ctrl</key><key>H</key></keyseq>)."
 
 #. (itstool) path: page/p
 #: C/base.page:32
diff --git a/help/sk/sk.po b/help/sk/sk.po
index a7ba00d..1fdbb3b 100644
--- a/help/sk/sk.po
+++ b/help/sk/sk.po
@@ -3,13 +3,14 @@
 # Ján Ďanovský <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Tibor Kaputa <[email protected]>, 2018
+# Erik Bročko <[email protected]>, 2019
 # 
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
-"Last-Translator: Tibor Kaputa <[email protected]>, 2018\n"
+"Last-Translator: Erik Bročko <[email protected]>, 2019\n"
 "Language-Team: Slovak (https://www.transifex.com/mate/teams/13566/sk/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -29,7 +30,7 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/absolute.page:9
 msgid "Absolute Values"
-msgstr ""
+msgstr "Absolútne hodnoty"
 
 #. (itstool) path: page/p
 #: C/absolute.page:11
@@ -37,6 +38,8 @@ msgid ""
 "Absolute values are calculated using the | symbol or abs <link "
 "xref=\"function\">function</link>."
 msgstr ""
+"Absolútne hodnoty môžete počítať pomocou symbolu | alebo <link "
+"xref=\"function\">funkcie</link> abs."
 
 #. (itstool) path: example/p
 #: C/absolute.page:15
@@ -142,12 +145,12 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/complex.page:9
 msgid "Complex Numbers"
-msgstr ""
+msgstr "Komplexné čísla"
 
 #. (itstool) path: page/p
 #: C/complex.page:11
 msgid "Complex numbers are not supported in <app>MATE Calculator</app>."
-msgstr ""
+msgstr "Komplexné čísla nie sú podporované v <app>MATE kalkulačke</app>."
 
 #. (itstool) path: page/p
 #: C/conv-base.page:11
@@ -524,6 +527,9 @@ msgid ""
 "function argument. If the argument is not a number or <link "
 "xref=\"variable\">variable</link> then use parenthesis around the argument."
 msgstr ""
+"Funkcie môžete použiť zadaním názvu funkcie a argumentu funkcie. Ak argument"
+" nie je číslo alebo <link xref=\"variable\">premenná</link>, vložte argument"
+" do zátvoriek."
 
 #. (itstool) path: example/p
 #: C/functions.page:16
@@ -548,7 +554,7 @@ msgstr ""
 #. (itstool) path: td/p
 #: C/functions.page:29
 msgid "<link xref=\"absolute\">Absolute Value</link>"
-msgstr ""
+msgstr "<link xref=\"absolute\">Absolútna hodnota</link>"
 
 #. (itstool) path: td/p
 #: C/functions.page:32
@@ -558,7 +564,7 @@ msgstr "cos"
 #. (itstool) path: td/p
 #: C/functions.page:33
 msgid "<link xref=\"trigonometry\">Cosine</link>"
-msgstr ""
+msgstr "<link xref=\"trigonometry\">Kosínus</link>"
 
 #. (itstool) path: td/p
 #: C/functions.page:36
@@ -598,7 +604,7 @@ msgstr "ln"
 #. (itstool) path: td/p
 #: C/functions.page:49
 msgid "<link xref=\"logarithm\">Natural Logarithm</link>"
-msgstr ""
+msgstr "<link xref=\"logarithm\">Prirodzený logaritmus</link>"
 
 #. (itstool) path: td/p
 #: C/functions.page:52
@@ -608,7 +614,7 @@ msgstr "log"
 #. (itstool) path: td/p
 #: C/functions.page:53
 msgid "<link xref=\"logarithm\">Logarithm</link>"
-msgstr ""
+msgstr "<link xref=\"logarithm\">Logaritmus</link>"
 
 #. (itstool) path: td/p
 #: C/functions.page:56
@@ -703,7 +709,7 @@ msgstr ""
 #. (itstool) path: page/title
 #: C/index.page:13
 msgid "MATE Calculator Help"
-msgstr ""
+msgstr "Pomocník MATE kalkulačky"
 
 #. (itstool) path: section/title
 #: C/index.page:16
@@ -723,7 +729,7 @@ msgstr "Čísla"
 #. (itstool) path: section/title
 #: C/index.page:28
 msgid "Conversions"
-msgstr ""
+msgstr "Prevody"
 
 #. (itstool) path: section/title
 #: C/index.page:32
diff --git a/help/sr@latin/[email protected] b/help/sr@latin/[email protected]
index fa4fbf7..46d3fee 100644
--- a/help/sr@latin/[email protected]
+++ b/help/sr@latin/[email protected]
@@ -8,7 +8,7 @@ msgstr ""
 "POT-Creation-Date: 2018-10-03 14:33+0200\n"
 "PO-Revision-Date: 2018-10-01 16:45+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
-"Language-Team: Serbian (Latin) (https://www.transifex.com/mate/teams/13566/sr%40latin/)\n"
+"Language-Team: Serbian (Latin) (https://www.transifex.com/mate/teams/13566/sr@latin/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/LINGUAS b/po/LINGUAS
index c32080d..eaabebb 100644
--- a/po/LINGUAS
+++ b/po/LINGUAS
@@ -61,6 +61,7 @@ hr
 hu
 hy
 id
+ie
 ig
 is
 it
diff --git a/po/af.po b/po/af.po
index 7224bca..8367f05 100644
--- a/po/af.po
+++ b/po/af.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Afrikaans (https://www.transifex.com/mate/teams/13566/af/)\n"
@@ -521,12 +521,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Sakrekenaar"
 
@@ -1318,105 +1318,123 @@ msgstr "Wys %d desimale _plekke"
 msgid "Unable to open help file"
 msgstr "Kan nie hulplêer oopmaak nie"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Valmantas Palikša https://launchpad.net/~walmis\n"
-"  maiatoday https://launchpad.net/~maiatoday"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Sakrekenaar met finansiële en wetenskaplike modusse."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Valmantas Palikša https://launchpad.net/~walmis\n"
+"  maiatoday https://launchpad.net/~maiatoday"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Sakrekenaar"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modus"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hulp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basies"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Gevorderd"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansieel"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Inhoud"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopieer"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Plak"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Ontdoen"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Herdoen"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Voorkeure"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Verlaat"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Aangaande"
 
diff --git a/po/am.po b/po/am.po
index db0d40e..0d52985 100644
--- a/po/am.po
+++ b/po/am.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: samson <[email protected]>, 2018\n"
 "Language-Team: Amharic (https://www.transifex.com/mate/teams/13566/am/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "የ ሜት መደመሪያ "
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "መደመሪያ "
 
@@ -1279,102 +1279,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "የ እርዳታ ፋይል መክፈት አልተቻለም"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Samson-Belete-Belayineh"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Samson-Belete-Belayineh"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_ማስሊያ"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_ዘዴ "
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_እርዳታ"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_መሰረታዊ"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_የረቀቀ "
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_ገንዘብ"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_ይዞታዎች"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_ኮፒ "
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_መለጠፊያ "
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_መተው"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_እንደገና መስሪያ"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_ምርጫዎች "
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_ማጥፊያ"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_ስለ"
 
diff --git a/po/ar.po b/po/ar.po
index 3090c57..1062eb8 100644
--- a/po/ar.po
+++ b/po/ar.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: مهدي السطيفي <[email protected]>, 2018\n"
 "Language-Team: Arabic (https://www.transifex.com/mate/teams/13566/ar/)\n"
@@ -522,12 +522,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "حاسبة متّة"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "الحاسِبة"
 
@@ -1327,114 +1327,122 @@ msgstr "أظهر %d خا_نة عُشرية"
 msgid "Unable to open help file"
 msgstr "تعذّر فتح ملفِ المُساعدة"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"فريق عيون العرب للترجمة http://www.arabeyes.org :\n"
-"مصعب الزعبي\t<[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"حاسبة متّة برنامج حر، يمكنك توزيعه و/أو تعديله حسب بنود رخصة جنو العمومية كما \n"
-"نشرتها مؤسسة البرامج الحرة، الإصدار الثاني أو أي إصدار أحدث (حسب رغبتك).\n"
-"\n"
-"توزع حاسبة متّة على أمل أن تكون مفيدةً، ولكن دون أي ضمانات، بما في ذلك ضمانات \n"
-"قابلية البرنامج للتسويق أو الملاءمة لغرض معين. انظر نص رخصة جنو العمومية \n"
-"لمزيد من التفاصيل.\n"
-"\n"
-"من المفترض أنك تلقيت نسخة من رخصة جنو العمومية مع هذا البرنامج؛ إذا لم يحدث \n"
-"هذا فاكتب إلى مؤسسة البرمجيات الحرة\n"
-" 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "حاسبةُ متّة"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ألة حاسبة ذات خصائص علميّة و اقتصادية."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"فريق عيون العرب للترجمة http://www.arabeyes.org :\n"
+"مصعب الزعبي\t<[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_حاسبة"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "الو_ضع"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_مساعدة"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_أساسي"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "مُ_تقدم"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_مصرفي"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "برم_جي"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "الم_حتويات"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "ا_نسخ"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ا_لصق"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_تراجع"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "أ_عِد"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "ال_تّفضيلات"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_خروج"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_عنْ"
 
diff --git a/po/as.po b/po/as.po
index 7b57595..51111da 100644
--- a/po/as.po
+++ b/po/as.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Assamese (https://www.transifex.com/mate/teams/13566/as/)\n"
@@ -520,12 +520,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "গণক"
 
@@ -1317,102 +1317,120 @@ msgstr "%d দশমিক স্থানসমূহ দেখুৱাওক
 msgid "Unable to open help file"
 msgstr "সহায়িকাৰ ফাইল খুলিবলৈ ব্যৰ্থ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "অমিতাক্ষ ফুকন ([email protected])"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "অৰ্থনৈতিক এবং বৈজ্ঞানিক অৱস্থাসহ গণক।"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "অমিতাক্ষ ফুকন ([email protected])"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ক্যালকুলেটৰ"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "সাহায্য (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "মৌলিক (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "অৰ্থনৈতিক মোড (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "প্রোগ্রামিং (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "বিষয়বস্তু (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "নকল কৰক (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "আঠা লগাওক (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "পূৰ্বাবস্থা (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "পুনঃ কৰক (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "পছন্দ (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "প্ৰস্থান (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "বিষয়ে (_A)"
 
diff --git a/po/ast.po b/po/ast.po
index f38c9e4..bebac68 100644
--- a/po/ast.po
+++ b/po/ast.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Asturian (https://www.transifex.com/mate/teams/13566/ast/)\n"
@@ -528,12 +528,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1325,115 +1325,120 @@ msgstr "Amosar %d deci_males"
 msgid "Unable to open help file"
 msgstr "Nun pue abrise'l ficheru d'ayuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Softastur <www.softastur.org>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc ye software llibre; pues redistribuyilu y/o modificalu\n"
-"baxo los términos de la GNU General Public License asoleyada pola\n"
-"Free Software Foundation; na so 2ª versión, o (na to opinión)\n"
-"cualaquier versión postrera.\n"
-"\n"
-"mate-calc ta distribuyíu cola esperanza que seya útil,\n"
-"pero ENSIN DENGUNA GARANTÍA; ensin la garantía impicita de MERCABILIDÁ\n"
-"o ENCAXE PA UN PROPÓSITU PARTICULAR. Mira la GNU General Public License\n"
-"pa más detalles.\n"
-"\n"
-"Deberíes recibir una copia de la GNU General Public License xunto con\n"
-"mate-calc; sinon, escribi a la Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, EE.XX"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Ferramienta mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculadora con modos financieros y científicos."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Softastur <www.softastur.org>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mou"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ayuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Básica"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avanzada"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financiera"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programador"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Índiz"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "A_pegar"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Desfacer"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refacer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencies"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Colar"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Tocante a"
 
diff --git a/po/az.po b/po/az.po
index df93e64..12577db 100644
--- a/po/az.po
+++ b/po/az.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Azerbaijani (https://www.transifex.com/mate/teams/13566/az/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Hesaplayıcı"
 
@@ -1278,106 +1278,124 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
 msgstr ""
-"Mətin Əmirov <[email protected]>\n"
-"\n"
-"Tərcümə işləri üzrə yazışma siyahısı ünvanımız:\n"
-"<[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Maliyyə və elmi modları olan hesablayıcı."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Mətin Əmirov <[email protected]>\n"
+"\n"
+"Tərcümə işləri üzrə yazışma siyahısı ünvanımız:\n"
+"<[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Yardım"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Məzmun"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "Köçü_r"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Yapışdır"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Geri Al"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Təkrarla"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Seçimlər"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "Çı_x"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Haqqında"
 
diff --git a/po/be.po b/po/be.po
index ea0a40b..e1e1562 100644
--- a/po/be.po
+++ b/po/be.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Mihail Varantsou <[email protected]>, 2018\n"
 "Language-Team: Belarusian (https://www.transifex.com/mate/teams/13566/be/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Калькулятар MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Калькулятар"
 
@@ -1299,104 +1299,122 @@ msgstr "Паказваць %d разрадаў пасля _коскі"
 msgid "Unable to open help file"
 msgstr "Не выйшла адкрыць файл даведкі"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Belarusian Language Linux Team <[email protected]>\n"
-"Mikhas Varantsou <[email protected]> 2014-2016"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Калькулятар з падтрымкай фінансавых і навуковых функцый."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Belarusian Language Linux Team <[email protected]>\n"
+"Mikhas Varantsou <[email protected]> 2014-2016"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Калькулятар"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Рэжым"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Даведка"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Просты"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Адмысловы"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Фінансавы"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Для праграмавання"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Змесціва"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Капіяваць"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Уставіць"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Адрабіць"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Вярнуць"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Настáўленні"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Выйсці"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Пра аплет"
 
diff --git a/po/bg.po b/po/bg.po
index 70d6ee6..28efad1 100644
--- a/po/bg.po
+++ b/po/bg.po
@@ -9,15 +9,16 @@
 # Georgi Georgiev <[email protected]>, 2018
 # Любомир Василев, 2018
 # Замфир Йончев <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Замфир Йончев <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Bulgarian (https://www.transifex.com/mate/teams/13566/bg/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -535,12 +536,12 @@ msgstr ""
 "„MATE“. Ако искате да научите повече относно „MATE“ и „MATE "
 "Калкулатор“,моля, посетете страницата на проекта. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Калкулатор"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Калкулатор"
 
@@ -1334,8 +1335,52 @@ msgstr "%d _знака след запетаята"
 msgid "Unable to open help file"
 msgstr "Файлът с помощта не може да бъде отворен"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Калкулатор с финансов и научен режим"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Владимир „Kaladan“ Петков <[email protected]>\n"
@@ -1347,109 +1392,71 @@ msgstr ""
 "Научете повече за нас на http://mate.cult.bg\n"
 "Докладвайте за грешки на http://mate.cult.bg/bugs"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc е свободен софтуер. Можете да я разпространявате и/или\n"
-"променяте под условията на Общия публичен лиценз на GNU, както\n"
-"е публикуван от Фондацията за Свободен Софтуер — версия 2 на лиценза или (по\n"
-"ваше решение) по-късна версия.\n"
-"\n"
-"Тази програма се разпространява с надеждата, че ще бъде полезна, но БЕЗ\n"
-"НИКАКВИ ГАРАНЦИИ, дори и косвените за ПРОДАЖБА или СЪОТВЕТСТВИЕ С КАКВАТО И\n"
-"ДА Е УПОТРЕБА. За подробности погледнете Общия публичен лиценз на GNU.\n"
-"\n"
-"Трябва да сте получили копие от Общия публичен лиценз на GNU\n"
-"заедно с тази програма. Ако не сте, пишете до Free Software Foundation,\n"
-"Inc., 151 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Калкулатор с финансов и научен режим"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Калкулатор"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Режим"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Помощ"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Основен режим"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Разширен режим"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Финансов режим"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "Ре_жим за програмиране"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Ръководство"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Копиране"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Поставяне"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Връщане"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Повтаряне"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Настройки"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Изход"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Относно…"
 
diff --git a/po/bn.po b/po/bn.po
index 870b4d5..76ace85 100644
--- a/po/bn.po
+++ b/po/bn.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Bengali (https://www.transifex.com/mate/teams/13566/bn/)\n"
@@ -524,12 +524,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ক্যালকুলেটর"
 
@@ -1319,8 +1319,52 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "সহায়িকার ফাইল খুলতে ব্যর্থ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "অর্থনৈতিক এবং বৈজ্ঞানিক মোডসহ ক্যালকুলেটর।"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "অঙ্কুর প্রকল্পের পক্ষে, সায়মিন্দু দাশগুপ্ত <[email protected]>\n"
@@ -1329,97 +1373,71 @@ msgstr ""
 "লোবা ইয়াসমীন <[email protected]>\n"
 "ইসরাত জাহান <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "অর্থনৈতিক এবং বৈজ্ঞানিক মোডসহ ক্যালকুলেটর।"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ক্যালকুলেটর (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "সহায়িকা (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "মূল (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "উচ্চপর্যায়ের (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "অর্থনৈতিক (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "প্রোগ্রামিং (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "বিষয়বস্তু (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "অনুলিপি করুন (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "প্রতিলেপন (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "পূর্বাবস্থা (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "পুনরায় করুন (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "পছন্দ (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "প্রস্থান (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "পরিচিতি (_A)"
 
diff --git a/po/bn_IN.po b/po/bn_IN.po
index a165dbd..9f9699a 100644
--- a/po/bn_IN.po
+++ b/po/bn_IN.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Bengali (India) (https://www.transifex.com/mate/teams/13566/bn_IN/)\n"
@@ -525,12 +525,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ক্যালকুলেটর"
 
@@ -1322,105 +1322,123 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "সহায়িকার ফাইল খুলতে ব্যর্থ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"সায়মিন্দু দাশগুপ্ত <[email protected]> \n"
-"রুণা ভট্টাচার্য্য <[email protected]>\n"
-"(অঙ্কুর প্রকল্পের পক্ষ থেকে)"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "অর্থনৈতিক এবং বৈজ্ঞানিক মোডসহ ক্যালকুলেটর।"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"সায়মিন্দু দাশগুপ্ত <[email protected]> \n"
+"রুণা ভট্টাচার্য্য <[email protected]>\n"
+"(অঙ্কুর প্রকল্পের পক্ষ থেকে)"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ক্যালকুলেটর (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "সাহায্য (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "মৌলিক মোড(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "উন্নত বৈশিষ্ট্য (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "অর্থনৈতিক মোড (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "প্রোগ্রামিং (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "সূচিপত্র (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "কপি করুন(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "পেস্ট করুন (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "পূর্বাবস্থা (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "পুনরাবৃত্তি (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_प्राथमिकताएं"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "প্রস্থান (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "পরিচিতি (_A)"
 
diff --git a/po/br.po b/po/br.po
index cada070..476c569 100644
--- a/po/br.po
+++ b/po/br.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Alan Monfort <[email protected]>, 2018\n"
 "Language-Team: Breton (https://www.transifex.com/mate/teams/13566/br/)\n"
@@ -499,12 +499,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1286,102 +1286,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Troet eo bet gant"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Troet eo bet gant"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Skoazell"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Endal_c'hadoù"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Eilañ"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Pegañ"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Dizober"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Adober"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Gwellvezioù"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Kuitaat"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Diwar-benn"
 
diff --git a/po/bs.po b/po/bs.po
index d15afee..53866fc 100644
--- a/po/bs.po
+++ b/po/bs.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Sky Lion <[email protected]>, 2018\n"
 "Language-Team: Bosnian (https://www.transifex.com/mate/teams/13566/bs/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Računalo"
 
@@ -1281,102 +1281,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Prevoditelji"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Računalo sa financijskim i naučnim modima."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Prevoditelji"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Pomoć"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Sadržaj"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiraj"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Umetni"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Vrati"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Po_novi"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Postavke"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Izađi"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_O"
 
diff --git a/po/ca.po b/po/ca.po
index c11b479..b515a02 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -7,16 +7,16 @@
 # Francesc Famadas <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Pere O. <[email protected]>, 2018
-# Robert Antoni Buj Gelonch <[email protected]>, 2018
+# Robert Antoni Buj Gelonch <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Robert Antoni Buj Gelonch <[email protected]>, 2018\n"
+"Last-Translator: Robert Antoni Buj Gelonch <[email protected]>, 2019\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"
@@ -535,12 +535,12 @@ msgstr ""
 "l'entorn d'escriptori MATE. Si voleu saber més sobre MATE i la calculadora "
 "de MATE, visiteu la pàgina principal del projecte. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora de MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1332,116 +1332,138 @@ msgstr "Mostra %d _posicions decimals"
 msgid "Unable to open help file"
 msgstr "No es pot obrir el fitxer d'ajuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Equip de documentació de MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Blanca Biosca <[email protected]>\n"
-"Jordi Serratosa <[email protected]>\n"
-"Pere O. <[email protected]>\n"
-"Robert Antoni Buj Gelonch <[email protected]>"
+"La calculadora de MATE és programari lliure; podeu redistribuir-lo i/o "
+"modificar-lo sota els termes de la Llicència Pública General de GNU tal com "
+"ha estat publicada per la Free Software Foundation, ja sigui la versió 2 de "
+"la Llicència o bé (si ho preferiu) qualsevol versió posterior."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"mate-calc és programari lliure; podeu redistribuir-lo i/o modificar-lo sota els\n"
-"termes de la Llicència pública general de GNU tal com publica la Free\n"
-"Software Foundation; tant en la versió 2 de la llicència, o (a la vostra opció)\n"
-"una versió posterior. mate-calc es distribueix amb l'esperança que sigui útil,\n"
-"però SENSE CAP GARANTIA; fins i tot sense la garantia implícita de\n"
-"COMERCIALITZACIÓ o ADEQUACIÓ A UN ÚS CONCRET. Per obtenir més\n"
-"informació, consulteu la Llicència Pública General de GNU.\n"
-"Hauríeu d'haver rebut una còpia de la Llicència pública general de GNU\n"
-"amb mate-calc; si no és així, escriviu a la Free Software Foundation,  Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"La calculadora de MATE es distribueix amb l'esperança que sigui útil, però "
+"SENSE CAP GARANTIA; ni tan sols la garantia implícita de COMERCIALITZACIÓ o "
+"ADEQUACIÓ PER A CAP FINALITAT DETERMINADA. Consulteu la Llicència Pública "
+"General de GNU per a més informació."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Amb la calculadora de MATE hauríeu d'haver rebut una còpia de la Llicència "
+"Pública General de GNU; si no és així, escriviu a la Free Software "
+"Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301 "
+"USA"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "Quant a la calculadora de MATE"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Drets d'autor © 1986–2010 Els autors de GCalctool\n"
+"Drets d'autor © 2011-2019 Els desenvolupadors de MATE"
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculadora amb mode financer i científic."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Blanca Biosca <[email protected]>\n"
+"Jordi Serratosa <[email protected]>\n"
+"Pere O. <[email protected]>\n"
+"Robert Antoni Buj Gelonch <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ajuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Bàsic"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avançat"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financer"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programació"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Contingut"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copia"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Enganxa"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Desfés"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refés"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferències"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Surt"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Quant a"
 
diff --git a/po/[email protected] b/po/[email protected]
index f423529..f08b328 100644
--- a/po/[email protected]
+++ b/po/[email protected]
@@ -6,17 +6,18 @@
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
 # Jose Alfredo Murcia Andrés <[email protected]>, 2018
-# Pilar Embid <[email protected]>, 2018
+# Pilar Embid <[email protected]>, 2019
+# Empar Montoro <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Pilar Embid <[email protected]>, 2018\n"
-"Language-Team: Catalan (Valencian) (https://www.transifex.com/mate/teams/13566/ca%40valencia/)\n"
+"Last-Translator: Empar Montoro <[email protected]>, 2019\n"
+"Language-Team: Catalan (Valencian) (https://www.transifex.com/mate/teams/13566/ca@valencia/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -534,12 +535,12 @@ msgstr ""
 "forma part de l'entorn d'escriptori MATE. Si voleu saber més sobre el MATE i"
 " la calculadora del MATE, visiteu la pàgina principal del projecte. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora del MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1331,8 +1332,52 @@ msgstr "Mostra %d _posicions decimals"
 msgid "Unable to open help file"
 msgstr "No s'ha pogut obrir el fitxer d'ajuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Equip de documentació del MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Calculadora amb mode financer i científic."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Quico Llach <[email protected]>\n"
@@ -1342,107 +1387,71 @@ msgstr ""
 "Josep Puigdemont <[email protected]>\n"
 "Equip LliureX: Pilar Embid <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"El mate-calc és programari lliure; podeu redistribuir-lo i/o modificar-lo\n"
-"sota els termes de la Llicència pública general de GNU tal com publica la\n"
-"Free Software Foundation; tant en la versió 2 de la llicència, o (a la\n"
-"vostra opció) una versió posterior. El mate-calc es distribueix amb l'esperança que siga útil, però\n"
-"SENSE CAP GARANTIA; fins i tot sense la garantia implícita de\n"
-"COMERCIALITZACIÓ o ADEQUACIÓ A UN ÚS CONCRET. Per a més detalls vegeu la\n"
-"Llicència pública general de GNU.\n"
-"Heu d'haver rebut una còpia de la Llicència pública general de GNU\n"
-"amb mate-calc; si no és així, escriviu a la Free Software Foundation, \n"
-"Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Calculadora amb mode financer i científic."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ajuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Bàsic"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avançat"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financer"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programació"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Continguts"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copia"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Enganxa"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Desfés"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refés"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferències"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Ix"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Quant a"
 
diff --git a/po/cmn.po b/po/cmn.po
index 8a55d9a..1bc4336 100644
--- a/po/cmn.po
+++ b/po/cmn.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: 趙惟倫 <[email protected]>, 2018\n"
 "Language-Team: Chinese (Mandarin) (https://www.transifex.com/mate/teams/13566/cmn/)\n"
@@ -499,12 +499,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE 計算機"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "計算機"
 
@@ -1293,117 +1293,123 @@ msgstr "顯示小數點後 %d 位數(_P)"
 msgid "Unable to open help file"
 msgstr "無法開啟求助檔案。"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
 msgstr ""
-"Woodman Tuen <[email protected]>, 2005-06\n"
-"Abel Cheung <[email protected]>, 2003-04\n"
-"趙惟倫 <[email protected]>, 2013"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc 為自由軟體；您可依據自由軟體基金會所發表\n"
-"的 GNU 通用公共授權條款規定，就本程式再為散布與／或修改；\n"
-"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。\n"
-"\n"
-"mate-calc 係基於使用目的而加以散布，\n"
-"然而不負任何擔保責任；\n"
-"亦無對適售性或特定目的適用性所為的默示性擔保。\n"
-"詳情請參照 GNU 通用公共授權。\n"
-"\n"
-"您應已收到附於本程式的 GNU 通用公共授權的副本；如果沒有，請寫信至\n"
-"Free Software Foundation，Inc.，\n"
-"51 Franklin Street，Fifth Floor，Boston，MA 02110-1301，USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "計算機"
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "附有財務及科學計算模式的計算機。"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Woodman Tuen <[email protected]>, 2005-06\n"
+"Abel Cheung <[email protected]>, 2003-04\n"
+"趙惟倫 <[email protected]>, 2013"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "計算機(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "求助(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "基本模式(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "進階模式(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "財務計算模式(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "軟體開發(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "內容(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "拷貝(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "貼上(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "復原(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "取消復原(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "偏好設定(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "離開(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "關於(_A)"
 
diff --git a/po/crh.po b/po/crh.po
index db7c1a7..b8b881d 100644
--- a/po/crh.po
+++ b/po/crh.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Crimean Turkish (https://www.transifex.com/mate/teams/13566/crh/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,104 +1278,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Reşat SABIQ https://launchpad.net/~tilde-birlik"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Reşat SABIQ https://launchpad.net/~tilde-birlik"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Yardım"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_İçindekiler"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopyala"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Y_apıştır"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Keri yap"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Kene _yap"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Tercihler"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Çıq"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Aqqında"
 
diff --git a/po/cs.po b/po/cs.po
index af23c44..018c926 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -9,17 +9,19 @@
 # Stefano Karapetsas <[email protected]>, 2018
 # Lukáš Kvídera <[email protected]>, 2018
 # Roman Horník <[email protected]>, 2018
-# ToMáš Marný, 2018
 # LiberteCzech <[email protected]>, 2018
+# Lucas Lommer <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
+# ToMáš Marný, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: LiberteCzech <[email protected]>, 2018\n"
+"Last-Translator: ToMáš Marný, 2019\n"
 "Language-Team: Czech (https://www.transifex.com/mate/teams/13566/cs/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -533,12 +535,12 @@ msgstr ""
 "Calc a je součástí pracovního prostředí MATE. Pokud byste se chtěli dozvědět"
 " více o MATE a MATE Calc, navštivte domovskou stránku projektu. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Kalkulačka"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulačka"
 
@@ -1334,8 +1336,65 @@ msgstr "Zobrazovat %d desetinných _míst"
 msgid "Unable to open help file"
 msgstr "Nezdařilo se otevření souboru nápovědy"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Dokumentační tým MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"MATE Kalkulačka je svobodný software; můžete jej šířit a/nebo modifikovat "
+"podle ustanovení GNU General Public License, vydávané Free Software "
+"Foundation; a to buď verze 2 této licence anebo (podle vlastního uvážení) "
+"kterékoliv pozdější verze."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"MATE Kalkulačka je šířena ve víře, že bude užitečná, ale BEZ JAKÝCHKOLIV "
+"ZÁRUK, a to i bez předpokládané záruky na PRODEJNOST nebo VHODNOST PRO "
+"KONKRÉTNÍ ÚČEL. Více podrobností najdete přímo v licenci GNU General Public "
+"License."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Kopii GNU General Public License byste měli obdržet spolu s tímto programem;"
+" pokud se tak nestalo, napište si o ni Free Software Foundation, Inc., 51 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA\""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "O kalkulačce"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Copyright © 1986–2010 Autoři GCalctool\n"
+"Copyright © 2011-2019 Vývojáři MATE"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulačka s finančním a vědeckým režimem."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Stanislav Brabec <[email protected]>\n"
@@ -1346,110 +1405,71 @@ msgstr ""
 "Lucas Lommer <[email protected]>\n"
 "Petr Kovář <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc je svobodný software; můžete jej šířit a upravovat podle\n"
-"ustanovení GNU General Public License, vydávané Free Software \n"
-"Foundation, a to buď ve verzi 2 této licence anebo (podle vlastního\n"
-"uvážení) v kterékoliv pozdější verze.\n"
-"\n"
-"Tento program je šířen v naději, že bude užitečný, avšak BEZ\n"
-"JAKÉKOLIV ZÁRUKY; neposkytují se ani odvozené záruky PRODEJNOSTI\n"
-"anebo VHODNOSTI PRO URČITÝ ÚČEL. Další podrobnosti hledejte v GNU\n"
-"General Public License.\n"
-"\n"
-"Kopii GNU General Public License byste měl(a) obdržet spolu s tímto\n"
-"programem. Pokud se tak nestalo, napište o ni Free Software Foundation,\n"
-"51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulačka s finančním a vědeckým režimem."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulátor"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "Reži_m"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Nápověda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Základní"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Pokročilá"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finanční"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programátorský"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Obsah"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopírovat"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "V_ložit"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Zpět"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Zn_ovu"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Nastavení"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Ukončit"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "O _aplikaci"
 
diff --git a/po/cy.po b/po/cy.po
index f73bf68..18716c5 100644
--- a/po/cy.po
+++ b/po/cy.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: ciaran, 2018\n"
 "Language-Team: Welsh (https://www.transifex.com/mate/teams/13566/cy/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Cyfrifiannell"
 
@@ -1283,104 +1283,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Cadan ap Tomos https://launchpad.net/~cadz123"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Cyfrifiannell gyda moddau ariannol a gwyddonol."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Cadan ap Tomos https://launchpad.net/~cadz123"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Cyfrifiannell"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Cymorth"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Sylfaenol"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Uwch"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Ariannol"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Cynnwys"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copïo"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Gludo"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Dadwneud"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ail-wneud"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Hoffterau"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Gadael"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Ynghylch"
 
diff --git a/po/da.po b/po/da.po
index d61d6f8..354130d 100644
--- a/po/da.po
+++ b/po/da.po
@@ -7,16 +7,16 @@
 # Kaj Printz Madsen <[email protected]>, 2018
 # Aputsiak Niels Janussen (Skjalden) <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
-# Joe Hansen <[email protected]>, 2018
+# Joe Hansen <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Joe Hansen <[email protected]>, 2018\n"
+"Last-Translator: Joe Hansen <[email protected]>, 2019\n"
 "Language-Team: Danish (https://www.transifex.com/mate/teams/13566/da/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -536,12 +536,12 @@ msgstr ""
 "at vide mere om MATE og MATE Calc, så besøgt venligst projektet's "
 "hjemmeside. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Mate-lommeregner"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Lommeregner"
 
@@ -1335,119 +1335,136 @@ msgstr "Vis %d _decimaler"
 msgid "Unable to open help file"
 msgstr "Kunne ikke åbne hjælpfil"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE-dokumentationsholdet"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"\"Joe Hansen, 2012, 2013, 2014, 2015, 2016, 2017, 2018.\\n\"\n"
-"\"\\n\"\n"
-"\"Dansk-gruppen <[email protected]>\\n\"\n"
-"\"Mere info: http://www.dansk-gruppen.dk\""
+"MATE-lommeregner er et frit program. Du kan redistribuere og ændre "
+"programmet under betingelserne i GNU General Public License som udgivet af "
+"Free Software Foundation; enten version 2 af licensen, eller (hvis du ønsker"
+" det) enhver senere version."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"mate-calc er et frit program. Du kan redistribuere og/eller modificere det\n"
-"under de betingelserne som er angivet i GNU General Public License, som\n"
-"er udgivet af Free Software Foundation. Enten version 2 af licensen\n"
-"eller (efter eget valg) enhver senere version.\n"
-"\n"
-"mate-calc distribueres i håb om, at det vil vise sig nyttigt, men UDEN NOGEN \n"
-"FORM FOR GARANTI, uden selv de underforståede garantier omkring \n"
-"SALGBARHED eller EGNETHED TIL ET BESTEMT FORMÅL. Yderligere detaljer kan \n"
-"læses i GNU General Public License.\n"
-"\n"
-"Du skulle have modtaget en kopi af GNU General Public License sammen med\n"
-"mate-calc. Hvis ikke, så skriv til Free software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Lommeregner"
+"MATE-lommeregner distribueres i håb om at programmet er nyttigt, men uden "
+"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:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Du bør have modtaget en kopi af GNU General Public License sammen med MATE-"
+"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:263
+msgid "About MATE Calculator"
+msgstr "Om MATE-lommeregner"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Ophavsret 1986–2010 GCalctool-forfatterne\n"
+"Ophavsret 2011–2019 MATE-udviklerne"
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Lommeregner med finansiel og videnskabelig tilstand."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"\"Joe Hansen, 2012, 2013, 2014, 2015, 2016, 2017, 2018.\\n\"\n"
+"\"\\n\"\n"
+"\"Dansk-gruppen <[email protected]>\\n\"\n"
+"\"Mere info: http://www.dansk-gruppen.dk\""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Lommeregner"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Tilstand"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hjælp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basalt"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avanceret"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansiel"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Indhold"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopier"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Indsæt"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Fortryd"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Gendan"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Præferencer"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Afslut"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Om"
 
diff --git a/po/de.po b/po/de.po
index 50aece9..0d4d69a 100644
--- a/po/de.po
+++ b/po/de.po
@@ -9,15 +9,18 @@
 # Stefano Karapetsas <[email protected]>, 2018
 # guyfawkes <[email protected]>, 2018
 # Tobias Bannert <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# Julian Rüger <[email protected]>, 2019
+# Ettore Atalan <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Tobias Bannert <[email protected]>, 2018\n"
+"Last-Translator: Ettore Atalan <[email protected]>, 2019\n"
 "Language-Team: German (https://www.transifex.com/mate/teams/13566/de/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -540,12 +543,12 @@ msgstr ""
 "Calc erfahren möchten, besuchen Sie bitte die Internetseite des Projektes. "
 "</p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE-Taschenrechner"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Taschenrechner"
 
@@ -1339,115 +1342,128 @@ msgstr "%d _Nachkommastellen anzeigen"
 msgid "Unable to open help file"
 msgstr "Hilfedatei kann nicht geöffnet werden"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE-Dokumentationsteam"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"Christian Meyer\n"
-"Benedikt Roth\n"
-"Matthias Warkus\n"
-"Hendrik Richter\n"
-"Christian Kirbach\n"
-"Wolfgang Stoeggl\n"
-"Tobias Bannert"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:249
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
 msgstr ""
-"mate-calc ist freie Software. Sie können es unter den Bedingungen der GNU General Public License, wie von der Free Software Foundation veröffentlicht, weitergeben und/oder modifizieren, entweder gemäß Version 2 der Lizenz oder (nach Ihrer Option) jeder späteren Version. \n"
-"\n"
-"Die Veröffentlichung von mate-calc erfolgt in der Hoffnung, dass es Ihnen von Nutzen sein wird, aber OHNE IRGENDEINE GARANTIE, sogar ohne die implizite Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Details finden Sie in der GNU General Public License.\n"
-"\n"
-"Sie sollten ein Exemplar der GNU General Public License zusammen mit diesem Programm erhalten haben. Falls nicht, schreiben Sie an die Free Software Foundation, Inc., 151 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA."
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "Über MATE-Taschenrechner"
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 "Ein Taschenrechner mit finanztechnischem und wissenschaftlichem Modus."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Christian Meyer\n"
+"Benedikt Roth\n"
+"Matthias Warkus\n"
+"Hendrik Richter\n"
+"Christian Kirbach\n"
+"Wolfgang Stoeggl\n"
+"Tobias Bannert"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Taschenrechner"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modus"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hilfe"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basis"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Erweitert"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finanztechnisch"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmierung"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Inhalt"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopieren"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "E_infügen"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Rückgängig"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Wiederherstellen"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Einstellungen"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Beenden"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Über"
 
diff --git a/po/dz.po b/po/dz.po
index 52846f4..7f149a0 100644
--- a/po/dz.po
+++ b/po/dz.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Dzongkha (https://www.transifex.com/mate/teams/13566/dz/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "རྩིས་འཕྲུལ།"
 
@@ -1276,105 +1276,123 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"ཨའི་ཌི་ཨར་སི་གི་མ་དངུལ་རྒྱབ་སྐྱོར་ཐོག་ལས་ བརྡ་དོན་འཕྲུལ་རིག་ལས་ཁུངས་ནང་ "
-"སྐད་བསྒྱུར་འབད་ཡི། ཁ་གསལ་གྱི་དོན་ལུ་ འབྲེལ་བ་འཐབ་ས་: "
-"<[email protected]>/<[email protected]>(_c)"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "ཇི་ཀེལ་སི་ཊུལ།"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "དངུལ་འབྲེལ་དང་ ཚན་རིག་ཐབས་ལམ་བཅས་པའི་རྩིས་འཕྲུལ།"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"ཨའི་ཌི་ཨར་སི་གི་མ་དངུལ་རྒྱབ་སྐྱོར་ཐོག་ལས་ བརྡ་དོན་འཕྲུལ་རིག་ལས་ཁུངས་ནང་ "
+"སྐད་བསྒྱུར་འབད་ཡི། ཁ་གསལ་གྱི་དོན་ལུ་ འབྲེལ་བ་འཐབ་ས་: "
+"<[email protected]>/<[email protected]>(_c)"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "རྩིས་འཕྲུལ། (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "གྲོགས་རམ།(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "གཞི་རྩ། (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "མཐོ་རིམ་ཅན། (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "དངུལ་འབྲེལ། (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "ནང་དོན།(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "འདྲ་བཤུས།(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "སྦྱར།(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "་འབད་བཤོལ།(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "ལོག་འབད།(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "དགའ་གདམ་ཚུ།(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "སྤངས།  (_Q)།"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "སྐོར་ལས།(_A)"
 
diff --git a/po/el.po b/po/el.po
index 24468b4..2ff303d 100644
--- a/po/el.po
+++ b/po/el.po
@@ -13,15 +13,17 @@
 # Petros Freris (Πέτρος Φρέρης) <[email protected]>, 2018
 # Efstathios Iosifidis <[email protected]>, 2018
 # Αλέξανδρος Καπετάνιος <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# TheDimitris15 <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Αλέξανδρος Καπετάνιος <[email protected]>, 2018\n"
+"Last-Translator: TheDimitris15 <[email protected]>, 2019\n"
 "Language-Team: Greek (https://www.transifex.com/mate/teams/13566/el/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -543,12 +545,12 @@ msgstr ""
 "περισσότερα σχετικά με το MATE και την εφαρμογή MATE Terminal, παρακαλούμε "
 "επισκεφθείτε την ιστοσελίδα τους. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Αριθμομηχανή MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Αριθμομηχανή"
 
@@ -1340,122 +1342,124 @@ msgstr "Εμφάνιση %d δεκαδικών _ψηφίων"
 msgid "Unable to open help file"
 msgstr "Αδύνατο το άνοιγμα του αρχείου βοήθειας"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Ομάδα τεκμηρίωσης MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Ελληνική μεταφραστική ομάδα MATE\n"
-" Αλέξανδρος Μουχτσής <[email protected]>\n"
-"\n"
-"Για περισσότερες πληροφορίες, επισκεφθείτε την σελίδα http://www.mate.gr/"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Το mate-calc είναι ελεύθερο λογισμικό. Επιτρέπεται η αναδιανομή ή/και \n"
-"τροποποίησή του υπό τους όρους της Γενικής Άδειας Δημόσιας Χρήσης \n"
-"GNU GPL, όπως αυτή έχει δημοσιευτεί από το Ίδρυμα Ελεύθερου \n"
-"Λογισμικού — είτε της έκδοσης 2 της Άδειας, είτε (κατ' επιλογήν \n"
-"σας) οποιασδήποτε μεταγενέστερης έκδοσης. \n"
-"\n"
-"Το mate-calc διανέμεται με την ελπίδα ότι θα αποδειχθεί χρήσιμο, \n"
-"παρόλα αυτά ΧΩΡΙΣ ΚΑΜΙΑ ΕΓΓΥΗΣΗ — χωρίς ούτε και την σιωπηρή \n"
-"εγγύηση ΕΜΠΟΡΕΥΣΙΜΟΤΗΤΑΣ ή ΚΑΤΑΛΛΗΛΟΤΗΤΑΣ ΓΙΑ ΕΙΔΙΚΟ ΣΚΟΠΟ. \n"
-"Για περισσότερες λεπτομέρειες ανατρέξτε στη Γενική Άδεια Δημόσιας \n"
-"Χρήσης GNU.\n"
-"\n"
-"Θα πρέπει να έχετε λάβει ένα αντίγραφο της Γενικής Άδειας Δημόσιας \n"
-"Χρήσης GNU μαζί με το Gcalctool. Αν όχι, γράψτε στο Free Software \n"
-"Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, \n"
-"USA"
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Αριθμομηχανή με εμπορικές και επιστημονικές λειτουργίες."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Ελληνική μεταφραστική ομάδα MATE\n"
+" Αλέξανδρος Μουχτσής <[email protected]>\n"
+"\n"
+"Για περισσότερες πληροφορίες, επισκεφθείτε την σελίδα http://www.mate.gr/"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Αριθμομηχανή"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Λειτουργία"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Βοήθεια"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Βασική"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "Π_ροχωρημένη"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "Ε_μπορική"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Προγραμματιστική"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Περιεχόμενα"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Αντιγραφή"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Επι_κόλληση"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Αναίρεση"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Ε_πανάληψη"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Προτιμήσεις"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Έξοδος"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Πε_ρί"
 
diff --git a/po/en_AU.po b/po/en_AU.po
index 8d46406..fdc2fb5 100644
--- a/po/en_AU.po
+++ b/po/en_AU.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Michael Findlay <[email protected]>, 2018\n"
 "Language-Team: English (Australia) (https://www.transifex.com/mate/teams/13566/en_AU/)\n"
@@ -526,12 +526,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Calculator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -1323,115 +1323,120 @@ msgstr "Show %d decimal _places"
 msgid "Unable to open help file"
 msgstr "Unable to open help file"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public Licence as published by\n"
-"the Free Software Foundation; either version 2 of the Licence, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public Licence for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public Licence\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculator with financial and scientific modes."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "translator-credits"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programming"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Contents"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copy"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Paste"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Undo"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Redo"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferences"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Quit"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_About"
 
diff --git a/po/en_CA.po b/po/en_CA.po
index 06a2ba5..12260e3 100644
--- a/po/en_CA.po
+++ b/po/en_CA.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: English (Canada) (https://www.transifex.com/mate/teams/13566/en_CA/)\n"
@@ -526,12 +526,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -1323,102 +1323,120 @@ msgstr "Show %d decimal _places"
 msgid "Unable to open help file"
 msgstr "Unable to open help file"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Adam Weinberger <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculator with financial and scientific modes."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Adam Weinberger <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programming"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Contents"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copy"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Paste"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Undo"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Redo"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferences"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Quit"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_About"
 
diff --git a/po/en_GB.po b/po/en_GB.po
index c436a97..441c055 100644
--- a/po/en_GB.po
+++ b/po/en_GB.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Andi Chandler <[email protected]>, 2018\n"
 "Language-Team: English (United Kingdom) (https://www.transifex.com/mate/teams/13566/en_GB/)\n"
@@ -533,12 +533,12 @@ msgstr ""
 "Calc and part of the MATE Desktop Environment. If you would like to know "
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Calculator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -1330,115 +1330,120 @@ msgstr "Show %d decimal _places"
 msgid "Unable to open help file"
 msgstr "Unable to open help file"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Martin Wimpress"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculator with financial and scientific modes."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Martin Wimpress"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Advanced"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financial"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programming"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Contents"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copy"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Paste"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Undo"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Redo"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferences"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Quit"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_About"
 
diff --git a/po/eo.po b/po/eo.po
index 3279622..c1463fc 100644
--- a/po/eo.po
+++ b/po/eo.po
@@ -8,15 +8,16 @@
 # Michael Moroni <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Cora Loftis, 2018
+# Forecast <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Cora Loftis, 2018\n"
+"Last-Translator: Forecast <[email protected]>, 2019\n"
 "Language-Team: Esperanto (https://www.transifex.com/mate/teams/13566/eo/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -534,12 +535,12 @@ msgstr ""
 "Calc kaj estas parto de la MATE Labortablo. Se vi ŝatus scii pli pri MATE "
 "kaj MATE Calc, bonvolu viziti la retpaĝo de la projekto.</p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Kalkulilo"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulilo"
 
@@ -1331,8 +1332,52 @@ msgstr "Montri %d _cifer-pozicioj"
 msgid "Unable to open help file"
 msgstr "Ne eblas malfermi helpdosieron"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulilo kun financa kaj scienca opcioj."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Brion VIBBER <[email protected]>\n"
@@ -1344,102 +1389,71 @@ msgstr ""
 "  Michael MORONI https://launchpad.net/~haikara90\n"
 "  Rick Miller https://launchpad.net/~rdmiller3"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc estas libera programaro; vi povas redistribui ĝin kaj/aŭ ŝanĝi ĝin sur la kondiĉoj de la GNU Generala Publika Licenso, kiel eldonita de la Free Software Foundation; aŭ eldono 2 de la licenso, aŭ (je vian elekton) iu posta eldono.\n"
-"\n"
-"mate-calc etsas distribuita je la espero, ke ĝi estos utila, sed SEN IUN GARANTION; sen eĉ la implicita garantio de VENDEBLAĴO aŭ TAŬGECO POR APARTA CELO. Vidu la GNU Generala Publika Licenso por pli da detaletoj.\n"
-"\n"
-"Vi devus esti ricevinta kopion de la GNU General Publika Licenso kun mate-calc; se ne, skribu al la Free Software Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulilo kun financa kaj scienca opcioj."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulilo"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Reĝimo"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Helpo"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Baza"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Altnivela"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financa"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programado"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Enhavoj"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopii"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Enmeti"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Malfari"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refari"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Agordoj"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Ĉesi"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Pri"
 
diff --git a/po/es.po b/po/es.po
index 6fe9e59..71394bc 100644
--- a/po/es.po
+++ b/po/es.po
@@ -4,24 +4,25 @@
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 # 
 # Translators:
-# Tasio Leiva <[email protected]>, 2018
 # Fabian Rodriguez, 2018
 # Andres Sanchez <[email protected]>, 2018
 # elio <[email protected]>, 2018
-# Adolfo Jayme-Barrientos, 2018
+# Fito JB, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Lluís Tusquellas <[email protected]>, 2018
 # Emiliano Fascetti, 2018
-# Joel Barrios <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# Joel Barrios <[email protected]>, 2019
+# Toni Estévez <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Joel Barrios <[email protected]>, 2018\n"
+"Last-Translator: Toni Estévez <[email protected]>, 2019\n"
 "Language-Team: Spanish (https://www.transifex.com/mate/teams/13566/es/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -43,7 +44,7 @@ msgstr "="
 #: ../data/buttons-advanced.ui.h:5 ../data/buttons-basic.ui.h:3
 #: ../data/buttons-financial.ui.h:78 ../data/buttons-programming.ui.h:14
 msgid "Clear"
-msgstr "Limpiar"
+msgstr "Borrar"
 
 #. Accessible name for the scientific exponent button
 #: ../data/buttons-advanced.ui.h:7
@@ -246,7 +247,7 @@ msgid ""
 "Calculates the amount of the periodic payment of a loan, where payments are "
 "made at the end of each payment period. "
 msgstr ""
-"Calcula la cantidad de pagos periódicos de un préstamo, donde los pagos se "
+"Calcula la cantidad de pagos periódicos de un prestamo, donde los pagos se "
 "realizan al final de cada periodo de pago."
 
 #. Periodic Interest Rate Dialog: Label before term input
@@ -336,9 +337,9 @@ msgstr ""
 "Calcula la depreciación de la subvención de un activo para un periodo de "
 "tiempo especificado, usando el método de «Sumatorio de los años-dígitos». "
 "Éste método de depreciación acelera la tasa de depreciación, de tal forma "
-"que los mayores gastos de depreciación suceden en los primeros años en lugar"
-" de en los últimos. La vida útil es el número de periodos, generalmente "
-"años, sobre los cuales se deprecia un activo."
+"que los mayores gastos de depreciación suceden en los primeros años en vez "
+"de en los últimos. La vida útil es el número de periodos, generalmente años,"
+" sobre los cuales se deprecia un activo."
 
 #. Title of Payment Period dialog
 #: ../data/buttons-financial.ui.h:67
@@ -446,7 +447,7 @@ msgstr "Insertar código de carácter"
 #. Insert ASCII dialog: Button to insert selected character
 #: ../data/buttons-programming.ui.h:5
 msgid "_Insert"
-msgstr "_Introducir"
+msgstr "_Insertar"
 
 #. Insert ASCII dialog: Label before character entry
 #: ../data/buttons-programming.ui.h:7
@@ -515,7 +516,7 @@ msgstr "_Tamaño de palabra:"
 #. Preferences dialog: label for show trailing zeroes check button
 #: ../data/preferences.ui.h:18
 msgid "Show trailing _zeroes"
-msgstr "Mostrar los c_eros excedentes"
+msgstr "Mostrar los c_eros finales"
 
 #. Preferences dialog: label for show thousands separator check button
 #: ../data/preferences.ui.h:20
@@ -524,7 +525,7 @@ msgstr "Mostrar los separadores de _millares"
 
 #: ../data/mate-calc.appdata.xml.in.h:1
 msgid "MATE Desktop calculator"
-msgstr "Calculadora del Escritorio MATE"
+msgstr "Calculadora del escritorio MATE"
 
 #: ../data/mate-calc.appdata.xml.in.h:2
 msgid ""
@@ -534,19 +535,19 @@ msgid ""
 "Calc and part of the MATE Desktop Environment. If you would like to know "
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
-"<p> MATE Calc es una potente calculadora gráfica con modo financiero, lógico"
-" y científico. Utiliza un paquete de precisión múltiple para llevar a cabo "
-"su aritmética con un alto nivel de precisión. </p> <p> MATE Calc es un fork "
-"de GNOME Calc y parte de MATE Desktop Environment. Si te gustaría saber más "
-"sobre MATE y MATE Calc, no dudes en visitar la página oficial del proyecto. "
-"</p>"
-
-#: ../data/mate-calc.desktop.in.h:1
+"<p> Calculadora de MATE es una potente calculadora gráfica con modo "
+"financiero, lógico y científico. Usa un paquete de precisión múltiple para "
+"llevar a cabo su aritmética con un alto nivel de precisión. </p> <p> "
+"Calculadora de MATE es una bifurcación de Calculadora de GNOME y parte del "
+"escritorio MATE. Si quiere saber más sobre MATE y Calculadora de MATE, "
+"visite la página oficial del proyecto. </p>"
+
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora de MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -843,7 +844,7 @@ msgstr ""
 "  --name=NOMBRE                   Nombre del programa como se usa por el gestor de ventanas\n"
 "  --screen=PANTALLA               Pantalla X que usar\n"
 "  --sync                          Hacer que las llamadas las X sean síncronas\n"
-"  --gtk-module=MÓDULOS            Cargar módulos GTK+ adicionales\n"
+"  --gtk-module=MÓDULOS            Cargar módulos de GTK+ adicionales\n"
 "  --g-fatal-warnings              Hacer que todos los avisos sean fatales"
 
 #. Description on mate-calc application options displayed on command-line
@@ -1086,12 +1087,12 @@ msgstr "Truncar"
 #. Tooltip for the start group button
 #: ../src/math-buttons.c:226
 msgid "Start Group [(]"
-msgstr "Inicio de bloque [(]"
+msgstr "Inicio de grupo [(]"
 
 #. Tooltip for the end group button
 #: ../src/math-buttons.c:229
 msgid "End Group [)]"
-msgstr "Fin de bloque [)]"
+msgstr "Fin de grupo [)]"
 
 #. Tooltip for the solve button
 #: ../src/math-buttons.c:238
@@ -1106,7 +1107,7 @@ msgstr "Factorizar [Ctrl+F]"
 #. Tooltip for the clear button
 #: ../src/math-buttons.c:244
 msgid "Clear Display [Escape]"
-msgstr "Limpiar la pantalla [Escape]"
+msgstr "Borrar la pantalla [Esc]"
 
 #. Tooltip for the undo button
 #: ../src/math-buttons.c:247
@@ -1170,7 +1171,7 @@ msgstr "Hexadecimal"
 msgid "_%d place"
 msgid_plural "_%d places"
 msgstr[0] "_%d lugar"
-msgstr[1] "_%d lugares"
+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)
@@ -1179,7 +1180,7 @@ msgstr[1] "_%d lugares"
 msgid "%d place"
 msgid_plural "%d places"
 msgstr[0] "%d lugar"
-msgstr[1] "%d lugares"
+msgstr[1] "%d posiciones"
 
 #. Tooltip for the round button
 #: ../src/math-buttons.c:996
@@ -1210,17 +1211,17 @@ msgstr " en "
 #. Tooltip for swap conversion button
 #: ../src/math-converter.c:427
 msgid "Switch conversion units"
-msgstr "Intercambiar unidades de conversión"
+msgstr "Cambiar unidades de conversión"
 
 #. Error shown when trying to undo with no undo history
 #: ../src/math-equation.c:459
 msgid "No undo history"
-msgstr "No hay histórico de acciones deshechas"
+msgstr "No hay historial de deshacer"
 
 #. Error shown when trying to redo with no redo history
 #: ../src/math-equation.c:486
 msgid "No redo history"
-msgstr "No hay histórico de acciones rehechas"
+msgstr "No hay historial de rehacer"
 
 #: ../src/math-equation.c:948
 msgid "No sane value to store"
@@ -1336,120 +1337,139 @@ msgstr "Mostrar %d deci_males"
 #. Translators: Error message displayed when unable to launch help browser
 #: ../src/math-window.c:212
 msgid "Unable to open help file"
-msgstr "No se pudo abrir el archivo de ayuda"
+msgstr "No se puede abrir el archivo de ayuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Equipo de Documentación de MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Jorge González <[email protected]>, 2007-2010\n"
-"Francisco Javier F. Serrador <[email protected]>, 2003-2006\n"
-"Pablo Gonzalo del Campo <[email protected]>, 2002-2003"
+"Calculadora de MATE es software libre: puede redistribuirlo y/o modificarlo "
+"bajo los términos de la Licencia Pública General de GNU publicada por la "
+"Free Software Foundation, ya sea la versión 2 de la Licencia como (a su "
+"elección) cualquier versión posterior."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"mate-calc es software libre, puede redistribuirlo y / o modificarlo\n"
-"bajo los términos de la Licencia Pública General de GNU según la publica\n"
-"la Free Software Foundation, ya sea la versión 2 de la Licencia, o \n"
-"(a su elección) cualquier otra versión posterior \n"
-"\n"
-"mate-calc se distribuye con la esperanza de que será útil, pero SIN\n"
-"NINGUNA GARANTÍA; sin siquiera la garantía implícita de COMERCIALIZACIÓN\n"
-"o IDONEIDAD PARA UN PROPÓSITO PARTICULAR. Vea la Licencia Pública\n"
-"General de GNU para más detalles.\n"
-"\n"
-"Debería haber recibido una copia de la Licencia Pública General de GNU \n"
-"junto con su mate-calc;. Si no, escriba a la Free Software Foundation, Inc.,\n"
-"Franklin Street n.º 501, 5.º piso, Boston, MA 02110-1301, EE. UU."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Calculadora de MATE se distribuye con la esperanza de que será útil, pero "
+"SIN NINGUNA GARANTÍA; ni siquiera la garantía implícita de COMERCIALIZACIÓN "
+"o IDONEIDAD PARA UN PROPÓSITO PARTICULAR. Consulte la Licencia Pública "
+"General de GNU para más detalles."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Debería haber recibido una copia de la Licencia Pública General de GNU junto"
+" con 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:263
+msgid "About MATE Calculator"
+msgstr "Acerca de Calculadora de MATE"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Copyright  © 1986–2010 Los autores de GCalctool\n"
+"Copyright  © 2011-2019 Los desarrolladores de MATE"
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculadora con modos científico y financiero."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Jorge González <[email protected]>, 2007-2010\n"
+"Francisco Javier F. Serrador <[email protected]>, 2003-2006\n"
+"Pablo Gonzalo del Campo <[email protected]>, 2002-2003"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modo"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Básico"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avanzado"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financiero"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programador"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Contenido"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Pegar"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Deshacer"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Rehacer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Salir"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Acerca de"
 
@@ -1480,7 +1500,7 @@ msgstr "El NO lógico solo está definido para números enteros positivos"
 #. Translators: Error displayed when bit shift attempted on non-integer values
 #: ../src/mp-binary.c:190
 msgid "Shift is only possible on integer values"
-msgstr "El desplazamiento sólo es posible en valores enteros"
+msgstr "El desplazamiento solo es posible en valores enteros"
 
 #. Translators: Error display when attempting to take argument of zero
 #: ../src/mp.c:148
@@ -1489,7 +1509,7 @@ msgstr "El argumento no está definido para cero"
 
 #: ../src/mp.c:299
 msgid "Overflow: the result couldn't be calculated"
-msgstr "Desbordamiento: no se pudo calcular el resultado"
+msgstr "Desbordamiento: no se ha podido calcular el resultado"
 
 #. Translators: Error displayed attempted to divide by zero
 #: ../src/mp.c:644 ../src/mp.c:676 ../src/mp.c:1605
@@ -1528,13 +1548,13 @@ msgstr ""
 #. fractional number
 #: ../src/mp.c:1934
 msgid "Factorial is only defined for natural numbers"
-msgstr "El factorial sólo está definido para números naturales"
+msgstr "El factorial solo está definido para números naturales"
 
 #. Translators: Error displayed when attemping to do a modulus division on
 #. non-integer numbers
 #: ../src/mp.c:1954
 msgid "Modulus division is only defined for integers"
-msgstr "La división modular sólo está definida para enteros"
+msgstr "La división modular solo está definida para enteros"
 
 #. Translators: Error displayed when tangent value is undefined
 #: ../src/mp-trigonometric.c:310
diff --git a/po/es_AR.po b/po/es_AR.po
index 03e97fc..84fae92 100644
--- a/po/es_AR.po
+++ b/po/es_AR.po
@@ -14,7 +14,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\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"
@@ -505,12 +505,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1286,104 +1286,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Francisco Javier F. Serrador <[email protected]>\n"
-"Jorge González González <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Francisco Javier F. Serrador <[email protected]>\n"
+"Jorge González González <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Acerca de"
 
diff --git a/po/es_CL.po b/po/es_CL.po
index 5a3395d..6eb4c87 100644
--- a/po/es_CL.po
+++ b/po/es_CL.po
@@ -8,16 +8,16 @@
 # David Ríos <[email protected]>, 2018
 # Alejo_K <[email protected]>, 2018
 # Pablo Lezaeta Reyes [pˈaβ̞lo lˌe̞θaˈeta rˈejɛ] <[email protected]>, 2018
-# Robert Petitpas <[email protected]>, 2018
+# Robert Petitpas <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Robert Petitpas <[email protected]>, 2018\n"
+"Last-Translator: Robert Petitpas <[email protected]>, 2019\n"
 "Language-Team: Spanish (Chile) (https://www.transifex.com/mate/teams/13566/es_CL/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -501,12 +501,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1282,102 +1282,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Créditos de los traductores"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Equipo de documentiación de MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Créditos de los traductores"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Acerca de"
 
diff --git a/po/es_CO.po b/po/es_CO.po
index 812a404..2aa3049 100644
--- a/po/es_CO.po
+++ b/po/es_CO.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: John Toro <[email protected]>, 2018\n"
 "Language-Team: Spanish (Colombia) (https://www.transifex.com/mate/teams/13566/es_CO/)\n"
@@ -501,12 +501,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1282,102 +1282,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Julián Andrés Borrero<[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Julián Andrés Borrero<[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ayuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Índ_ice"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Deshacer"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Rehacer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Salir"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Acerca de"
 
diff --git a/po/es_ES.po b/po/es_ES.po
index 26c11c3..190fc2a 100644
--- a/po/es_ES.po
+++ b/po/es_ES.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\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"
@@ -499,12 +499,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1280,104 +1280,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Jorge González <[email protected]>\n"
-"Francisco Javier F. Serrador <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Jorge González <[email protected]>\n"
+"Francisco Javier F. Serrador <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Prefere_ncias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Acerca _de"
 
diff --git a/po/es_MX.po b/po/es_MX.po
index 30a2292..8e138b7 100644
--- a/po/es_MX.po
+++ b/po/es_MX.po
@@ -14,7 +14,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Luis Medina <[email protected]>, 2018\n"
 "Language-Team: Spanish (Mexico) (https://www.transifex.com/mate/teams/13566/es_MX/)\n"
@@ -500,12 +500,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1281,8 +1281,52 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr ""
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Luis Armando Medina A. <[email protected]>, 2016\n"
@@ -1293,97 +1337,71 @@ msgstr ""
 "Ismael Olea <[email protected]>, 2001\n"
 "Jorge Carrasquilla Soares <[email protected]>, 2000"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr ""
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Ay_uda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Índice"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "Salir"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Acerca de"
 
diff --git a/po/es_PR.po b/po/es_PR.po
index 93d64b2..f902e08 100644
--- a/po/es_PR.po
+++ b/po/es_PR.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\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"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1279,104 +1279,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Francisco Javier F. Serrador <[email protected]>\n"
-"Jorge González González <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Francisco Javier F. Serrador <[email protected]>\n"
+"Jorge González González <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ayuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Acerca de"
 
diff --git a/po/et.po b/po/et.po
index dabe0a6..f8c21d4 100644
--- a/po/et.po
+++ b/po/et.po
@@ -5,18 +5,18 @@
 # 
 # Translators:
 # xpander0 <[email protected]>, 2018
-# Mattias Põldaru <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Ivar Smolin <[email protected]>, 2018
+# Mattias Põldaru <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Ivar Smolin <[email protected]>, 2018\n"
+"Last-Translator: Mattias Põldaru <[email protected]>, 2019\n"
 "Language-Team: Estonian (https://www.transifex.com/mate/teams/13566/et/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -525,12 +525,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE kalkulaator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulaator"
 
@@ -1322,8 +1322,52 @@ msgstr "Näidatakse %d _kümnendkohta"
 msgid "Unable to open help file"
 msgstr "Abiteabe faili pole võimalik avada"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE dokumenteerimise meeskond"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulaator koos finants- ja teadusarvutuste toega."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Lauris Kaplinski, 1999.\n"
@@ -1332,110 +1376,71 @@ msgstr ""
 "Priit Laes <plaes plaes org>, 2004–2006, 2008, 2009\n"
 "Ivar Smolin <okul linux ee>, 2005–2010, 2014–2015, 2018."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc on vaba tarkvara. Te võite seda edasi levitada ja/või muuta\n"
-"vastavalt GNU Üldise Avaliku Litsentsi tingimustele, nagu need on\n"
-"Vaba Tarkvara Fondi poolt avaldatud; kas Litsentsi versioon number 2\n"
-"või (vastavalt Teie valikule) ükskõik milline hilisem versioon.\n"
-"\n"
-"mate-calci levitatakse lootuses, et see on kasulik,\n"
-"kuid ILMA IGASUGUSE GARANTIITA; isegi KESKMISE/TAVALISE\n"
-"KVALITEEDIGARANTIITA või SOBIVUSELE TEATUD KINDLAKS EESMÄRGIKS.\n"
-"Üksikasjade suhtes vaata GNU Üldist Avalikku Litsentsi.\n"
-"\n"
-"Te peaks olema saanud GNU Üldise Avaliku Litsentsi koopia koos\n"
-"mate-calciga; kui ei, siis võtke ühendust Free Software Foundation'iga,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulaator koos finants- ja teadusarvutuste toega."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulaator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Režiim"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "A_bi"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Tavaline"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Laiendatud"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Rahandus"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmeerimine"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Sisukord"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopeeri"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Aseta"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Unusta"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Taasta"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Eelistused"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Lõpeta"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Lähemalt"
 
diff --git a/po/eu.po b/po/eu.po
index f321c8b..ff3d091 100644
--- a/po/eu.po
+++ b/po/eu.po
@@ -6,15 +6,16 @@
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
 # Asier Iturralde Sarasola <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Asier Iturralde Sarasola <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Basque (https://www.transifex.com/mate/teams/13566/eu/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -527,12 +528,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE kalkulagailua"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulagailua"
 
@@ -1324,104 +1325,122 @@ msgstr "Erakutsi dezimalen %d _posizio"
 msgid "Unable to open help file"
 msgstr "Ezin da Laguntza-fitxategia ireki"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Asier Iturralde Sarasola <[email protected]>\n"
-"Aritz Jorge Sánchez"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Modu finantzarioa eta zientifikoa dituen kalkulagailua."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Asier Iturralde Sarasola <[email protected]>\n"
+"Aritz Jorge Sánchez"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulagailua"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modua"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Laguntza"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Oinarrizkoa"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Aurreratua"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finantzarioa"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programazioa"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Edukia"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiatu"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Itsatsi"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Desegin"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Berregin"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Hobespenak"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Irten"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Honi _buruz"
 
diff --git a/po/fa.po b/po/fa.po
index e90fd22..8db3b15 100644
--- a/po/fa.po
+++ b/po/fa.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Mahdi Pourghasem <[email protected]>, 2018\n"
 "Language-Team: Persian (https://www.transifex.com/mate/teams/13566/fa/)\n"
@@ -501,12 +501,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "ماشین حساب MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ماشین‌حساب"
 
@@ -1298,102 +1298,120 @@ msgstr "نمایش %Id رقم _اعشاری"
 msgid "Unable to open help file"
 msgstr "نمی‌توان پرونده‌ی راهنما را باز کرد"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "محمدرضا حاجیانپور <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "ابزار ماشین‌حساب گنوم"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ماشین‌حساب با حالت‌های مالی و علمی."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "محمدرضا حاجیانپور <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_ماشین‌حساب"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_حالت"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_راهنما"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "ا_بتدایی"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_پیشرفته"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_مالی"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_برنامه‌نویسی"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_محتویات"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_نسخه‌برداری"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "چسباندن"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "ب_رگردان"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_دوباره"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_ترجیحات"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_ترک"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_درباره"
 
diff --git a/po/fi.po b/po/fi.po
index 7514e0f..6548635 100644
--- a/po/fi.po
+++ b/po/fi.po
@@ -11,15 +11,17 @@
 # nomen omen, 2018
 # Eslam Ali <[email protected]>, 2018
 # Ammuu5, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# Kimmo Kujansuu <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Ammuu5, 2018\n"
+"Last-Translator: Kimmo Kujansuu <[email protected]>, 2019\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"
@@ -529,12 +531,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Laskin"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Laskin"
 
@@ -1324,8 +1326,52 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "ohjetiedostoa ei voi avata"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE-dokumentointitiimi"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Laskin talous- ja tiedetilojen kera"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Tommi Vainikainen, 2005\n"
@@ -1334,97 +1380,71 @@ msgstr ""
 "Jarkko Ranta, 2003-2004\n"
 "Johanna Makkonen, 2003"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Laskin"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Laskin talous- ja tiedetilojen kera"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Laskin"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Tila"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ohje"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Perustila"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Edistynyt"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Taloustila"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Ohjelmointi"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Sisältö"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopioi"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "L_iitä"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Kumoa"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Tee _uudelleen"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Asetukset"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Lopeta"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Tietoja"
 
diff --git a/po/fr.po b/po/fr.po
index e2e823b..cabd52a 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -7,18 +7,20 @@
 # jeremy shields <[email protected]>, 2018
 # mauron, 2018
 # Stefano Karapetsas <[email protected]>, 2018
-# Étienne Deparis <[email protected]>, 2018
 # Tubuntu <[email protected]>, 2018
 # Charles Monzat <[email protected]>, 2018
+# Étienne Deparis <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
+# David D, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Charles Monzat <[email protected]>, 2018\n"
+"Last-Translator: David D, 2019\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"
@@ -538,12 +540,12 @@ msgstr ""
 " en savoir plus au sujet de MATE et de la calculatrice MATE, veuillez "
 "visiter la page d'accueil du projet. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculatrice de MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculatrice"
 
@@ -1335,8 +1337,66 @@ msgstr "Afficher %d dé_cimales"
 msgid "Unable to open help file"
 msgstr "Impossible d'ouvrir le fichier d'aide"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Équipe de documentation MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"MATE Calculatrice est un logiciel libre ; vous pouvez le redistribuer et/ou "
+"le modifier selon les termes de la Licence Publique Générale GNU, telle que "
+"publiée par la Free Software Foundation ; version 2 de la licence, ou (à "
+"votre discrétion) toute version ultérieure."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"MATE Calculatrice est distribué dans l'espoir qu'il vous sera utile, mais "
+"SANS AUCUNE GARANTIE ; sans même la garantie implicite de VALEUR MARCHANDE "
+"ou D'ADÉQUATION À UN BESOIN PARTICULIER. Consultez la Licence Publique "
+"Générale GNU pour plus de détails."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Vous devez avoir reçu une copie de la Licence Publique Générale GNU en même "
+"temps que MATE Calcultrice ; si ce n'est pas le cas, écrivez à la Free "
+"Software Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA "
+"02110-1301 USA"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "À propos de Calculatrice de MATE"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"© 1986–2010 Les auteurs de GCalctool\n"
+"© 2011–2019 Les développeurs de MATE"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Calculatrice avec des modes financiers et scientifiques."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Contributeurs au projet MATE :\n"
@@ -1354,108 +1414,71 @@ msgstr ""
 "Claude Paroz <[email protected]>, 2008-2010.\n"
 "Gérard Baylard <gerard dot b at bbox dot fr>, 2010"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc est un logiciel libre ; vous pouvez le redistribuer et/ou le \n"
-"modifier selon les termes de la Licence Publique Générale GNU, telle que publiée par la Free Software Foundation ; version 2 de la licence, ou\n"
-"(à votre discrétion) toute version ultérieure.\n"
-"\n"
-"mate-calc est distribué dans l'espoir qu'il vous sera utile,\n"
-"mais SANS AUCUNE GARANTIE ; sans même la garantie implicite de\n"
-"VALEUR MARCHANDE ou D'ADÉQUATION À UN BESOIN PARTICULIER.  Consultez la Licence Publique Générale GNU pour plus de détails.\n"
-"\n"
-"Vous devez avoir reçu une copie de la Licence Publique Générale GNU\n"
-"en même temps que mate-calc ; si ce n'est pas le cas, écrivez à la Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Calculatrice avec des modes financiers et scientifiques."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculatrice"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Aide"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basique"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avancé"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financier"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmation"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Sommaire"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copier"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "C_oller"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "A_nnuler"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Restaurer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Préférences"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Quitter"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_À propos"
 
diff --git a/po/frp.po b/po/frp.po
index 6258af9..6cc0403 100644
--- a/po/frp.po
+++ b/po/frp.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\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"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Èquipa de traduction"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Èquipa de traduction"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr ""
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Dèfâre"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refâre"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Prèfèrences"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr ""
 
diff --git a/po/fur.po b/po/fur.po
index bb2da79..5b347aa 100644
--- a/po/fur.po
+++ b/po/fur.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Friulian (https://www.transifex.com/mate/teams/13566/fur/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Andrea Decorte <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Andrea Decorte <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Jutori"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Somari"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Cupie"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Tache"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Anule"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ripet"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencis"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Jes"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Informazions"
 
diff --git a/po/ga.po b/po/ga.po
index 1946644..f0c607b 100644
--- a/po/ga.po
+++ b/po/ga.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Irish (https://www.transifex.com/mate/teams/13566/ga/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Áireamhán"
 
@@ -1284,105 +1284,123 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "Ní féidir comhad cabhrach a oscailt"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Paul Duffy <[email protected]>\n"
-"Alastair McKinstry <[email protected]>\n"
-"Seán de Búrca <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Paul Duffy <[email protected]>\n"
+"Alastair McKinstry <[email protected]>\n"
+"Seán de Búrca <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "Á_ireamhán"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Cab_hair"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Bunúsach"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Casta"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Airgeadúil"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Ríomhchlárú"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Inneachar"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Cóipeáil"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "G_reamaigh"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Cealaigh"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Athfheidhmigh"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Sainroghanna"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "Scoi_r"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Maidir Leis Seo"
 
diff --git a/po/gl.po b/po/gl.po
index 0f4dd5c..acbdc23 100644
--- a/po/gl.po
+++ b/po/gl.po
@@ -5,17 +5,17 @@
 # 
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
-# Miguel Anxo Bouzada <[email protected]>, 2018
 # André Rivero Castillo <[email protected]>, 2018
+# Miguel Anxo Bouzada <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: André Rivero Castillo <[email protected]>, 2018\n"
+"Last-Translator: Miguel Anxo Bouzada <[email protected]>, 2019\n"
 "Language-Team: Galician (https://www.transifex.com/mate/teams/13566/gl/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -536,12 +536,12 @@ msgstr ""
 "quere saber máis sobre MATE e MATE Calc, visite a páxina oficial do "
 "proxecto. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1333,120 +1333,135 @@ msgstr "Amosar %d _posicións decimais"
 msgid "Unable to open help file"
 msgstr "Non é posíbel abrir o ficheiro de axuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr " Equipo de documentación do MATE "
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Miguel Anxo Bouzada <[email protected]>\n"
-"Proxecto Trasno <[email protected]>"
+"A  Calculadora do MATE é software libre polo que vostede pode redistribuílo "
+"e/ou modificalo baixo os termos da Licenza Pública Xeral de GNU publicada "
+"pola Free Software Foundation tanto na versión 2 da licenza como (baixo a "
+"súa elección) calquera versión posterior."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"A Calculadora do MATE distribúese coa esperanza de que sexa útil, mais SEN "
+"NINGUNHA GARANTÍA; mesmo sen a garantía implícita de COMERCIALIZACIÓN ou "
+"IDONEIDADE PARA UN PROPÓSITO PARTICULAR. Para máis detalles vexa a Licenza "
+"Pública Xeral de GNU."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:249
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
 msgstr ""
-"mate-calc é software libre e, xa que logo, vostede pode redistribuílo\n"
-"e/ou modificalo consonte os termos estabelecidos na Licenza Pública\n"
-"Xeral de GNU segundo a súa publicación pola Free Software Foundation.\n"
-"Pode escoller a versión 2 da licenza ou, se prefire, calquera\n"
-"outra versión posterior.\n"
-"\n"
-"mate-calc distribúese coa esperanza de que resulte útil, se ben NON TEN\n"
-"NINGUNHA GARANTÍA, nin sequera a garantía implícita\n"
-"de COMERCIALIZACIÓN\n"
-"ou IDONEIDADE PARA UN DETERMINADO FIN. Para obter información máis\n"
-"detallada pode consultar a Licenza Pública Xeral de GNU.\n"
-"\n"
-"Dáse por sentado que recibiu unha copia da Licenza Pública Xeral de GNU\n"
-"xunto con este programa. Se non for así, pode solicitala por escrito á\n"
-"Free Software Foundation, Inc. no enderezo seguinte:\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Debeu recibir unha copia da Licenza Pública Xeral de GNU coa Calculadora do "
+"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:263
+msgid "About MATE Calculator"
+msgstr "Sobre a Calculadora do MATE"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Dereitos de autoría © 1986–2010 Os autores do GCalctool\n"
+"Dereitos de autoría © 2011-2019 Os desenvolvedores do MATE"
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculadora con modo financeiro e científico."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Miguel Anxo Bouzada <[email protected]>\n"
+"Proxecto Trasno <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modo"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Axuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Básico"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avanzado"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financeiro"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programación"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Contidos"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Pegar"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Desfacer"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refacer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferencias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Saír"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Sobre"
 
@@ -1541,7 +1556,7 @@ msgid ""
 "(90°)"
 msgstr ""
 "A tanxente non está definida para os ángulos que son múltiplos de π (180°) "
-"desde π∕2 (90°)"
+"dende π∕2 (90°)"
 
 #. Translators: Error displayed when inverse sine value is undefined
 #: ../src/mp-trigonometric.c:355
diff --git a/po/gu.po b/po/gu.po
index afba586..f2fda82 100644
--- a/po/gu.po
+++ b/po/gu.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Gujarati (https://www.transifex.com/mate/teams/13566/gu/)\n"
@@ -522,12 +522,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "મેટ કૅલ્ક્યુલેટર"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "કૅલ્ક્યુલેટર"
 
@@ -1319,102 +1319,120 @@ msgstr "%d દશાંશ સ્થળોને બતાવો (_p)"
 msgid "Unable to open help file"
 msgstr "મદદ ફાઇલને ખોલવામાં અસમર્થ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "અનુવાદક સન્માન"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "જીનોમ કૅલ્ક્યુલેટર"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "આર્થિક અને વૈજ્ઞાનિક સ્થિતિઓ સાથેનુ કૅલ્ક્યુલેટર."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "અનુવાદક સન્માન"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "કૅલ્ક્યુલેટર (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "મદદ (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "આધારભૂત (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "અદ્યતન (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "આર્થિક (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "પ્રોગ્રામીંગ (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "સમાવિષ્ટો (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "નકલ કરો (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ચોંટાડો (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "છેલ્લી પ્રક્રિયાને રદ કરો (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "ફરીથી કરો (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "પસંદગીઓ (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "બહાર નીકળો (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "વિશે (_A)"
 
diff --git a/po/he.po b/po/he.po
index 2118ca4..4b4cb35 100644
--- a/po/he.po
+++ b/po/he.po
@@ -14,7 +14,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: shy tzedaka <[email protected]>, 2018\n"
 "Language-Team: Hebrew (https://www.transifex.com/mate/teams/13566/he/)\n"
@@ -522,12 +522,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "המחשבון של MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "מחשבון"
 
@@ -1323,102 +1323,120 @@ msgstr "הצגת %d _מקומות עשרוניים"
 msgid "Unable to open help file"
 msgstr "לא ניתן לפתוח את קובץ העזרה"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Yaron Shahrabani <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "מחשבון עם מצבים פיננסיים ומדעיים"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Yaron Shahrabani <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_מחשבון"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_מצב"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ע_זרה"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_בסיסי"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_מתקדם"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_פיננסי"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_תכנות"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_תוכן עניינים"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "ה_עתק"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ה_דבק"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_בטל"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_ביצוע שוב"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "ה_עדפות"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_יציאה"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "על _אודות"
 
diff --git a/po/hi.po b/po/hi.po
index 9c10150..f1733f0 100644
--- a/po/hi.po
+++ b/po/hi.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Sadgamaya <[email protected]>, 2018\n"
 "Language-Team: Hindi (https://www.transifex.com/mate/teams/13566/hi/)\n"
@@ -526,12 +526,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "माटे कैल्क्यलेटर"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "गणक"
 
@@ -1323,111 +1323,124 @@ msgstr "%d दशमलव स्थान तक दिखाएँ (_p)"
 msgid "Unable to open help file"
 msgstr "मदद फाइल खोलने में असमर्थ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"राजेश रंजन ([email protected])\n"
-"जी करुणाकर ([email protected])\n"
-"रविशंकर श्रीवास्तव ([email protected])\n"
-"राघवन गोपालकृष्णन्  ([email protected])"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:249
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"माटे-कैल्क मुक्त सॉफ्टवेयर है; फ्री सॉफ्टवेयर फाउंडेशन द्वारा प्रकाशित गनू  जनरल पब्लिक लाइसेंस के दुसरे संस्करण या (आप के विकल्प पर) बाद के संस्करणों के शर्तों के तहत आप इस कार्यक्रम का पुनर्वितरण या/व संशोधन कर सकते हैं।\n"
-"\n"
-"माटे-कैल्क इस आशा से वितरित किया जाता है के ये उपयोगी होगा पर बिना कोई वारंटी के; और नाही व्यापारिकता या विषय विशेष के लिए उपयुक्तता कि कोई  निहित वारंटी है। अधिक जानकारी के लिए गनु जनरल पब्लिक लाइसेंस पढ़ें ।\n"
-"\n"
-"आप को माटे-कैल्क के साथ ग्नू जनरल पब्लिक लाइसेंस कि एक प्रतिलिपि मिली होगी। अगर ना मिली हो, तो इस पते पर लिखें  Free Software Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "जिकेल्कटूल"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "वित्त और वैज्ञानिक मोड वाला गणक"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"राजेश रंजन ([email protected])\n"
+"जी करुणाकर ([email protected])\n"
+"रविशंकर श्रीवास्तव ([email protected])\n"
+"राघवन गोपालकृष्णन्  ([email protected])"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "गणक (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_मोड़"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "मदद (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "मौलिक (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "उन्नत (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "वित्तिय (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "प्रोग्रामिंग (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "विषय सूची (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "प्रतिलिपि (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "चिपकाएँ (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "पहले जैसा (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "फिर करें (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "वरीयताएँ (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "बाहर जाएँ (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "परिचय (_A)"
 
diff --git a/po/hr.po b/po/hr.po
index 9f1a540..4d3c45c 100644
--- a/po/hr.po
+++ b/po/hr.po
@@ -6,17 +6,17 @@
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
 # Tomislav Krznar <[email protected]>, 2018
-# Ivica  Kolić <[email protected]>, 2018
 # Elvis M. Lukšić <[email protected]>, 2018
+# Ivica  Kolić <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Elvis M. Lukšić <[email protected]>, 2018\n"
+"Last-Translator: Ivica  Kolić <[email protected]>, 2019\n"
 "Language-Team: Croatian (https://www.transifex.com/mate/teams/13566/hr/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -500,12 +500,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE kalkulator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1283,8 +1283,52 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "Nije moguće otvoriti datoteku pomoći"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE dokumentacijski tim"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulator sa financijskim i naučnim načinom rada."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Prijevod na Transifexu:\n"
@@ -1311,97 +1355,71 @@ msgstr ""
 "  civix https://launchpad.net/~civix\n"
 "  young https://launchpad.net/~davorin-sego"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Gkalktul"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulator sa financijskim i naučnim načinom rada."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Način rada"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Pomoć"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Napredno"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Sadržaj"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiraj"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Zalijepi"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Poništi"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ponovi"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Prilagodbe"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Završi"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_O programu"
 
diff --git a/po/hu.po b/po/hu.po
index fe66798..f2c387c 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -4,21 +4,21 @@
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 # 
 # Translators:
-# Zoltán Rápolthy <[email protected]>, 2018
-# KAMI KAMI <[email protected]>, 2018
 # Falu <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
-# Balázs Meskó <[email protected]>, 2018
 # Rezső Páder <[email protected]>, 2018
+# KAMI KAMI <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
+# Balázs Meskó <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Rezső Páder <[email protected]>, 2018\n"
+"Last-Translator: Balázs Meskó <[email protected]>, 2019\n"
 "Language-Team: Hungarian (https://www.transifex.com/mate/teams/13566/hu/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -521,7 +521,7 @@ msgstr "_Ezreselválasztók megjelenítése"
 
 #: ../data/mate-calc.appdata.xml.in.h:1
 msgid "MATE Desktop calculator"
-msgstr "MATE Desktop számológép "
+msgstr "MATE asztali számológép "
 
 #: ../data/mate-calc.appdata.xml.in.h:2
 msgid ""
@@ -531,19 +531,19 @@ msgid ""
 "Calc and part of the MATE Desktop Environment. If you would like to know "
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
-"<p> A MATE Számológép egy hatékony grafikus számológép pénzügyi, logikai és "
+"<p> A MATE számológép egy hatékony grafikus számológép pénzügyi, logikai és "
 "tudományos üzemmódokkal. A számtanhoz egy többrétű precíziós csomagot "
 "használ a nagy fokú pontosság érdekében. </p> <p> A MATE Számológép a GNOME "
 "Számológép származéka és része a MATE asztali környezetnek. Ha szeretne "
 "többet megtudni a MATE-ról és a MATE Számológépről, kérjük, látogasson el a "
 "projekt honlapjára. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE számológép"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Számológép"
 
@@ -1336,8 +1336,65 @@ msgstr "%d decimális _hely megjelenítése"
 msgid "Unable to open help file"
 msgstr "A súgófájl nem nyitható meg"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE dokumentációs csapat"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"A MATE Számológép szabad szoftver, terjesztheti és/vagy módosíthatja a Free "
+"Software Foundation által kiadott GNU General Public License rendelkezései "
+"szerint, a licenc 2-es vagy későbbi verziója szerint."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"A MATE Számológépet abban a reményben adjuk közre, hogy hasznos lesz, de nem"
+" vállalunk SEMMIFÉLE GARANCIÁT, még olyan értelemben sem, hogy a program "
+"alkalmas-e az ELADHATÓSÁGRA vagy EGY BIZONYOS FELADAT ELVÉGZÉSÉRE. További "
+"részletekért tanulmányozza a GNU GPL licencet."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"A felhasználónak a programmal együtt meg kell kapnia a GNU General Public "
+"License egy példányát; ha mégsem kapta meg, akkor ezt a Free Software "
+"Foundationnak küldött levélben jelezze (cím: Free Software Foundation Inc., "
+"51 Flanklin Street, Fifth Floor, Boston, MA 02110-1301, USA.)"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "A MATE számológép névjegye"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Copyright © 1986–2010 A GCalctool szerzői\n"
+"Copyright © 2011-2019 MATE fejlesztők"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Számológép pénzügyi és tudományos üzemmódokkal."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Dvornik László<dvornik at mate dot hu>\n"
@@ -1349,110 +1406,71 @@ msgstr ""
 "Zoltán Rápolthy<real_zolee at hotmail dot com>\n"
 "Meskó Balázs <mesko dot balazs at fsf dot hu>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"A mate-calc szabad szoftver; terjeszthető illetve módosítható a Free Software\n"
-"Foundation által kiadott GNU General Public License dokumentumában leírtak;\n"
-"akár a licenc 2-es, akár (tetszőleges) későbbi változata szerint.\n"
-"\n"
-"A mate-calc abban a reményben kerül közreadásra, hogy hasznos lesz, de minden\n"
-"egyéb GARANCIA NÉLKÜL, az ELADHATÓSÁGRA vagy VALAMELY CÉLRA VALÓ\n"
-"ALKALMAZHATÓSÁGRA való származtatott garanciát is beleértve. További\n"
-"részleteket a GNU General Public License tartalmaz.\n"
-"\n"
-"A felhasználónak a programmal együtt meg kell kapnia a GNU General Public\n"
-"License egy példányát; ha mégsem kapta meg, akkor ezt a Free Software\n"
-"Foundationnak küldött levélben jelezze (cím: Free Software Foundation Inc.,\n"
-"59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.)"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Számológép pénzügyi és tudományos üzemmódokkal."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Számológép"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mód"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Súgó"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Alap"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Speciális"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Pénzügyi"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programozói"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Tartalom"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Másolás"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Beillesztés"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Visszavonás"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Mé_gis"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Beállítások"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Kilépés"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Névjegy"
 
diff --git a/po/hy.po b/po/hy.po
index f68faef..9649432 100644
--- a/po/hy.po
+++ b/po/hy.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Davit Mayilyan <[email protected]>, 2018\n"
 "Language-Team: Armenian (https://www.transifex.com/mate/teams/13566/hy/)\n"
@@ -523,12 +523,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Հաշվիչ"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Հաշվիչ"
 
@@ -1320,115 +1320,120 @@ msgstr "Ցույց տալ %d տասնորդական _վայրերը"
 msgid "Unable to open help file"
 msgstr "Օգնության ֆայլը չհաջողվեց բացել"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "թարգմանչի կրեդիտներ"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc ազատ ծրագրային ապահովում է; դուք յարող եք այն վերաբաշխել և/կամ փոփոխել\n"
-"այն GNU Համընդհանուր Հանրային Արտունագրի պայմանների տակ է, հրատարակված\n"
-"Ազատ Ծրագրային Ապահովման Հիմնադրամի կողմից, ինչպես նաև Արտոնագրի 2 տարբերակը, կամ\n"
-"(ձեր տարբերակը) ցանկացած ավելի ուշ տարբերակը.։\n"
-"\n"
-"mate-calc տարածվել է այն հույսով, որ այն օգտակար կլինի\n"
-"բայց ԱՌԱՆՑ ՈՐԵՎԷ ԵՐԱՇԽԻՔՆԵՐԻ; առանց նույնիսկ ենթադրյալ երաշխիքի\n"
-"ՎԱՃԱՌՔԻ կամ ՊԻՏԱՆԵԼԻՈՒԹՅԱՆ ՈՐՈՇԱԿԻ ՆՊԱՏԱԿԻ ՀԱՄԱՐ։ Տես\n"
-"GNU Համընդհանուր Հանրային Արտունագիր լրացուցիչ մանրամասների համար։\n"
-"\n"
-"Դուք պետք է ընդունեք GNU Համընդհանուր Հանրային Արտոնագրի պատճենը\n"
-"mate-calc հետ միասին; եթե ոչ,ապա գրել Ազատ Ծրագրային Ապահովման Հիմնադրամ։ Հասցե․\n"
-"151 Franklin Փողոց, Հինգերորդ Հարկ, Boston, MA 02110-1301, ԱՄՆ"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Հաշվիչ գիտական և ֆինանսական ռեժիմներով։"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "թարգմանչի կրեդիտներ"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Հաշվիչ"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Ռեժիմ"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Օգնություն"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "Հ_իմնական"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Ընդլայնված"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Ֆինանսական"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Ծրագրավորման"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Բովանդակություն"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Պատճեն"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Փակցնել"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Հետադարձել"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Կրկնել"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Նախընտրանքներ"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Ելք"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Մասին"
 
diff --git a/po/id.po b/po/id.po
index 302601c..188b810 100644
--- a/po/id.po
+++ b/po/id.po
@@ -12,15 +12,16 @@
 # Willy Sudiarto Raharjo <[email protected]>, 2018
 # La Ode Muh. Fadlun Akbar <[email protected]>, 2018
 # Andika Triwidada <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Andika Triwidada <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Indonesian (https://www.transifex.com/mate/teams/13566/id/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -539,12 +540,12 @@ msgstr ""
 "lingkungan destop MATE. Bila Anda ingin tahu lebih banyak tentang MATE dan "
 "Kalkulator MATE, silakan kunjungi laman beranda proyek. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Calculator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1334,8 +1335,52 @@ msgstr "Tam_pilkan %d angka di belakang koma"
 msgid "Unable to open help file"
 msgstr "Tidak dapat membuka berkas bantuan"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulator dengan model keuangan dan ilmuwan"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Mohammad DAMT <[email protected]>\n"
@@ -1344,109 +1389,71 @@ msgstr ""
 "Tim MATE Indonesia <http://id.mate.org>\n"
 "Kukuh Syafaat <[email protected]>, 2017."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc adalah perangkat lunak bebas; Anda boleh mendistribusikannya dan/atau memodifikasi\n"
-"dibawah aturan dari GNU General Public License seperti yang dipublikasikan oleh\n"
-"Free Software Foundation; baik versi 2 dari Lisensi, atau (sesuai pilihan Anda)\n"
-"versi lain yang lebih baru.\n"
-"\n"
-"mate-calc didistribusikan dengan harapan akan bermanfaat,\n"
-"tetapi TANPA GARANSI; tanpa garansi untuk DIPERDAGANGKAN atau LAYAK UNTUK TUJUAN TERTENTU.\n"
-"Lihat GNU General Public License.\n"
-"\n"
-"Anda seharusnya mendapatkan salinan dari GNU General Public License\n"
-"bersama dengan mate-calc; jika tidak, tulis ke Free Software Foundation, Inc.\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulator dengan model keuangan dan ilmuwan"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mode"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Bantuan"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Dasar"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "L_anjutan"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansial"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Pemrograman"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Isi"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Salin"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Tem_pel"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Tak Jadi"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Jadi Lagi"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferensi"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Keluar"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Tentang"
 
diff --git a/po/ie.po b/po/ie.po
new file mode 100644
index 0000000..497a379
--- /dev/null
+++ b/po/ie.po
@@ -0,0 +1,2254 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+# 
+# Translators:
+# Ольга Смирнова, 2019
+# 
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: MATE Desktop Environment\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
+"PO-Revision-Date: 2018-03-11 16:33+0000\n"
+"Last-Translator: Ольга Смирнова, 2019\n"
+"Language-Team: Interlingue (https://www.transifex.com/mate/teams/13566/ie/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: ie\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#. Accessible name for the factorize button
+#: ../data/buttons-advanced.ui.h:2 ../data/buttons-programming.ui.h:9
+msgid "Factorize"
+msgstr "Factorisar"
+
+#. Label on the solve button (clicking this solves the displayed calculation)
+#: ../data/buttons-advanced.ui.h:4 ../data/buttons-basic.ui.h:2
+#: ../data/buttons-financial.ui.h:77 ../data/buttons-programming.ui.h:13
+msgid "="
+msgstr "="
+
+#: ../data/buttons-advanced.ui.h:5 ../data/buttons-basic.ui.h:3
+#: ../data/buttons-financial.ui.h:78 ../data/buttons-programming.ui.h:14
+msgid "Clear"
+msgstr "Inmagasinar"
+
+#. Accessible name for the scientific exponent button
+#: ../data/buttons-advanced.ui.h:7
+msgid "Scientific Exponent"
+msgstr ""
+
+#. The label on the memory button
+#: ../data/buttons-advanced.ui.h:9 ../data/buttons-financial.ui.h:73
+#: ../data/buttons-programming.ui.h:18
+msgid "x"
+msgstr "x"
+
+#. Accessible name for the memory button
+#. Accessible name for the memory value button
+#. Tooltip for the memory button
+#: ../data/buttons-advanced.ui.h:11 ../data/buttons-financial.ui.h:75
+#: ../src/math-buttons.c:232
+msgid "Memory"
+msgstr "Memorie"
+
+#. Accessible name for the exponentiation (x to the power of y) button
+#: ../data/buttons-advanced.ui.h:13 ../data/buttons-basic.ui.h:6
+#: ../data/buttons-financial.ui.h:100 ../data/buttons-programming.ui.h:32
+msgid "Exponent"
+msgstr "Exponent"
+
+#: ../data/buttons-advanced.ui.h:14 ../data/buttons-basic.ui.h:4
+#: ../data/buttons-financial.ui.h:101
+msgid "Undo"
+msgstr "Defar"
+
+#: ../data/buttons-advanced.ui.h:15
+msgid "asin"
+msgstr "asin"
+
+#: ../data/buttons-advanced.ui.h:16
+msgid "atan"
+msgstr "atan"
+
+#: ../data/buttons-advanced.ui.h:17
+msgid "acos"
+msgstr "acos"
+
+#. Accessible name for the store value button
+#: ../data/buttons-advanced.ui.h:19 ../data/buttons-programming.ui.h:20
+msgid "Store"
+msgstr ""
+
+#. Accessible name for the inverse button
+#: ../data/buttons-advanced.ui.h:21 ../data/buttons-programming.ui.h:30
+msgid "Inverse"
+msgstr ""
+
+#. Accessible name for the factorial button
+#: ../data/buttons-advanced.ui.h:23 ../data/buttons-programming.ui.h:28
+msgid "Factorial"
+msgstr "Factoriale"
+
+#. Accessible name for the absolute value button
+#: ../data/buttons-advanced.ui.h:25 ../data/buttons-programming.ui.h:11
+msgid "Absolute Value"
+msgstr "Absolut valore"
+
+#. Accessible name for the superscript mode button
+#: ../data/buttons-advanced.ui.h:27 ../data/buttons-programming.ui.h:16
+msgid "Superscript"
+msgstr "Superscrition"
+
+#. Accessible name for the subscript mode button
+#: ../data/buttons-advanced.ui.h:29 ../data/buttons-programming.ui.h:34
+msgid "Subscript"
+msgstr "Subscrition"
+
+#. Title of Compounding Term dialog
+#. Tooltip for the compounding term button
+#: ../data/buttons-financial.ui.h:2 ../src/math-buttons.c:256
+msgid "Compounding Term"
+msgstr ""
+
+#: ../data/buttons-financial.ui.h:3 ../data/buttons-programming.ui.h:3
+msgid "_Cancel"
+msgstr "A_nullar"
+
+#. Payment Period Dialog: Button to calculate result
+#: ../data/buttons-financial.ui.h:5
+msgid "C_alculate"
+msgstr "C_alculate"
+
+#. Compounding Term Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h: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 ""
+
+#. Payment Period Dialog: Label before periodic interest rate input
+#: ../data/buttons-financial.ui.h:9
+msgid "Periodic Interest _Rate:"
+msgstr ""
+
+#. Periodic Interest Rate Dialog: Label before future value input
+#: ../data/buttons-financial.ui.h:11
+msgid "_Future Value:"
+msgstr "_Futuri valore:"
+
+#. Periodic Interest Rate Dialog: Label before present value input
+#: ../data/buttons-financial.ui.h:13
+msgid "Present _Value:"
+msgstr ""
+
+#. Title of Double-Declining Depreciation dialog
+#: ../data/buttons-financial.ui.h:15
+msgid "Double-Declining Depreciation"
+msgstr ""
+
+#. Double-Declining Depreciation Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:17
+msgid ""
+"Calculates the depreciation allowance on an asset for a specified period of "
+"time, using the double-declining balance method."
+msgstr ""
+
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:19
+msgid "_Life:"
+msgstr ""
+
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:21
+msgid "_Period:"
+msgstr ""
+
+#. Gross Profit Margin Dialog: Label before cost input
+#: ../data/buttons-financial.ui.h:23
+msgid "C_ost:"
+msgstr ""
+
+#. Title of Future Value dialog
+#. Tooltip for the future value button
+#: ../data/buttons-financial.ui.h:25 ../src/math-buttons.c:262
+msgid "Future Value"
+msgstr "Futuri valore"
+
+#. Present Value Dialog: Label before number of periods input
+#: ../data/buttons-financial.ui.h:27
+msgid "_Number of Periods:"
+msgstr ""
+
+#. Future Value Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:29
+msgid ""
+"Calculates the future value of an investment based on a series of equal "
+"payments at a periodic interest rate over the number of payment periods in "
+"the term."
+msgstr ""
+
+#. Payment Period Dialog: Label before periodic payment input
+#: ../data/buttons-financial.ui.h:31
+msgid "_Periodic Payment:"
+msgstr ""
+
+#. Title of Gross Profit Margin dialog
+#. Tooltip for the gross profit margin button
+#: ../data/buttons-financial.ui.h:33 ../src/math-buttons.c:283
+msgid "Gross Profit Margin"
+msgstr ""
+
+#. Gross Profit Margin Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:35
+msgid ""
+"Calculates the resale price of a product, based on the product cost and the "
+"wanted gross profit margin."
+msgstr ""
+
+#. Gross Profit Margin Dialog: Label before margin input
+#: ../data/buttons-financial.ui.h:37
+msgid "_Margin:"
+msgstr ""
+
+#. Title of Periodic Payment dialog
+#. Tooltip for the periodic payment button
+#: ../data/buttons-financial.ui.h:39 ../src/math-buttons.c:280
+msgid "Periodic Payment"
+msgstr ""
+
+#. Periodic Payment Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:41
+msgid ""
+"Calculates the amount of the periodic payment of a loan, where payments are "
+"made at the end of each payment period. "
+msgstr ""
+
+#. Periodic Interest Rate Dialog: Label before term input
+#: ../data/buttons-financial.ui.h:43
+msgid "_Term:"
+msgstr "_Termine:"
+
+#. Periodic Payment Dialog: Label before principal input
+#: ../data/buttons-financial.ui.h:45
+msgid "_Principal:"
+msgstr ""
+
+#. Title of Present Value dialog
+#. Tooltip for the present value button
+#: ../data/buttons-financial.ui.h:47 ../src/math-buttons.c:277
+msgid "Present Value"
+msgstr ""
+
+#. Present Value Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:49
+msgid ""
+"Calculates the present value of an investment based on a series of equal "
+"payments discounted at a periodic interest rate over the number of payment "
+"periods in the term. "
+msgstr ""
+
+#. Title of Periodic Interest Rate dialog
+#. Tooltip for the periodic interest rate button
+#: ../data/buttons-financial.ui.h:51 ../src/math-buttons.c:274
+msgid "Periodic Interest Rate"
+msgstr ""
+
+#. Periodic Interest Rate Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:53
+msgid ""
+"Calculates the periodic interest necessary to increase an investment to a "
+"future value, over the number of compounding periods. "
+msgstr ""
+
+#. Title of Straight-Line Depreciation dialog
+#: ../data/buttons-financial.ui.h:55
+msgid "Straight-Line Depreciation"
+msgstr ""
+
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:57
+msgid "_Cost:"
+msgstr ""
+
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:59
+msgid "_Salvage:"
+msgstr ""
+
+#. Straight-Line Depreciation Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:61
+msgid ""
+"Calculates the straight-line depreciation of an asset for one period. The "
+"straight-line method of depreciation divides the depreciable cost evenly "
+"over the useful life of an asset. The useful life is the number of periods, "
+"typically years, over which an asset is depreciated. "
+msgstr ""
+
+#. Title of Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:63
+msgid "Sum-of-the-Years'-Digits Depreciation"
+msgstr ""
+
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:65
+msgid ""
+"Calculates the depreciation allowance on an asset for a specified period of "
+"time, using the Sum-of-the-Years'-Digits method. This method of depreciation"
+" accelerates the rate of depreciation, so that more depreciation expense "
+"occurs in earlier periods than in later ones. The useful life is the number "
+"of periods, typically years, over which an asset is depreciated. "
+msgstr ""
+
+#. Title of Payment Period dialog
+#: ../data/buttons-financial.ui.h:67
+msgid "Payment Period"
+msgstr ""
+
+#. Payment Period Dialog: Label before future value input
+#: ../data/buttons-financial.ui.h:69
+msgid "Future _Value:"
+msgstr "Futuri _valore:"
+
+#. Payment Period Dialog: Description of calculation
+#: ../data/buttons-financial.ui.h:71
+msgid ""
+"Calculates the number of payment periods that are necessary during the term "
+"of an ordinary annuity, to accumulate a future value, at a periodic interest"
+" rate."
+msgstr ""
+
+#. 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
+#. rate of int per compounding period. See also:
+#. http://en.wikipedia.org/wiki/Compound_interest
+#: ../data/buttons-financial.ui.h:80
+msgid "Ctrm"
+msgstr ""
+
+#. Calculates the depreciation allowance on an asset for a specified period of
+#. time, using the double-declining balance method. See also:
+#. http://en.wikipedia.org/wiki/Depreciation
+#: ../data/buttons-financial.ui.h:82
+msgid "Ddb"
+msgstr ""
+
+#. Calculates the future value of an investment based on a series of equal
+#. payments, each of amount pmt, at a periodic interest rate of int, over the
+#. number of payment periods in the term. See also:
+#. http://en.wikipedia.org/wiki/Future_value
+#: ../data/buttons-financial.ui.h:84
+msgid "Fv"
+msgstr ""
+
+#. Calculates the number of payment periods that are necessary during the term
+#. of an ordinary annuity, to accumulate a future value of fv, at a periodic
+#. interest rate of int. Each payment is equal to amount pmt. See also:
+#. http://en.wikipedia.org/wiki/Annuity_(finance_theory)
+#: ../data/buttons-financial.ui.h:86
+msgid "Term"
+msgstr "Termine"
+
+#. Calculates the depreciation allowance on an asset for a specified period of
+#. time, using the Sum-Of-The-Years
+#: ../data/buttons-financial.ui.h:88
+msgid "Syd"
+msgstr ""
+
+#. Calculates the straight-line depreciation of an asset for one period. The
+#. depreciable cost is cost - salvage. The straight-line method of
+#. depreciation divides the depreciable cost evenly over the useful life of an
+#. asset. The useful life is the number of periods, typically years, over
+#. which an asset is depreciated. See also:
+#. http://en.wikipedia.org/wiki/Depreciation
+#: ../data/buttons-financial.ui.h:90
+msgid "Sln"
+msgstr ""
+
+#. Calculates the periodic interest necessary to increase an investment of
+#. present value pv to a future value of fv, over the number of compounding
+#. periods in term. See also: http://en.wikipedia.org/wiki/Interest
+#: ../data/buttons-financial.ui.h:92
+msgid "Rate"
+msgstr "Percentage"
+
+#. Calculates the present value of an investment based on a series of equal
+#. payments, each of amount pmt, discounted at a periodic interest rate of
+#. int, over the number of payment periods in the term. See also:
+#. http://en.wikipedia.org/wiki/Present_value
+#: ../data/buttons-financial.ui.h:94
+msgid "Pv"
+msgstr "Pv"
+
+#. Calculates the amount of the periodic payment of a loan, where payments are
+#. made at the end of each payment period. See also:
+#. http://en.wikipedia.org/wiki/Amortization_schedule
+#: ../data/buttons-financial.ui.h:96
+msgid "Pmt"
+msgstr ""
+
+#. Calculates the resale price of a product, based on the product cost and the
+#. wanted gross profit margin. See also:
+#. http://en.wikipedia.org/wiki/Gross_profit_margin
+#: ../data/buttons-financial.ui.h:98
+msgid "Gpm"
+msgstr ""
+
+#. Title of insert character code dialog
+#. Tooltip for the insert character code button
+#: ../data/buttons-programming.ui.h:2 ../src/math-buttons.c:235
+msgid "Insert Character Code"
+msgstr ""
+
+#. Insert ASCII dialog: Button to insert selected character
+#: ../data/buttons-programming.ui.h:5
+msgid "_Insert"
+msgstr "_Inserter"
+
+#. Insert ASCII dialog: Label before character entry
+#: ../data/buttons-programming.ui.h:7
+msgid "Ch_aracter:"
+msgstr "C_aracter:"
+
+#. Accessible name for the shift left button
+#: ../data/buttons-programming.ui.h:22
+msgid "Shift Left"
+msgstr ""
+
+#. Accessible name for the shift right button
+#: ../data/buttons-programming.ui.h:24
+msgid "Shift Right"
+msgstr ""
+
+#. Accessible name for the insert character button
+#: ../data/buttons-programming.ui.h:26
+msgid "Insert Character"
+msgstr "Inserter un caracter"
+
+#. Word size combo: 8 bits
+#: ../data/preferences.ui.h:2
+msgid "8-bit"
+msgstr "8-bit"
+
+#. Word size combo: 16 bits
+#: ../data/preferences.ui.h:4
+msgid "16-bit"
+msgstr "16-bit"
+
+#. Word size combo: 32 bits
+#: ../data/preferences.ui.h:6
+msgid "32-bit"
+msgstr "32-bit"
+
+#. Word size combo: 64 bits
+#: ../data/preferences.ui.h:8
+msgid "64-bit"
+msgstr "64-bit"
+
+#. Title of preferences dialog
+#: ../data/preferences.ui.h:9 ../src/math-preferences.c:239
+msgid "Preferences"
+msgstr "Preferenties"
+
+#: ../data/preferences.ui.h:10
+msgid "_Close"
+msgstr "_Cluder"
+
+#. Preferences dialog: Label for angle unit combo box
+#: ../data/preferences.ui.h:12
+msgid "_Angle units:"
+msgstr "Unités de angul:"
+
+#. Preferences dialog: Label for display format combo box
+#: ../data/preferences.ui.h:14
+msgid "Number _Format:"
+msgstr "_Formate de númere:"
+
+#. Preferences dialog: label for word size combo box
+#: ../data/preferences.ui.h:16
+msgid "Word _size:"
+msgstr "_Longore de parol:"
+
+#. Preferences dialog: label for show trailing zeroes check button
+#: ../data/preferences.ui.h:18
+msgid "Show trailing _zeroes"
+msgstr ""
+
+#. Preferences dialog: label for show thousands separator check button
+#: ../data/preferences.ui.h:20
+msgid "Show _thousands separators"
+msgstr ""
+
+#: ../data/mate-calc.appdata.xml.in.h:1
+msgid "MATE Desktop calculator"
+msgstr "Calculator de pupitre MATE"
+
+#: ../data/mate-calc.appdata.xml.in.h:2
+msgid ""
+"<p> MATE Calc is a powerful graphical calculator with financial, logical and"
+" scientific modes. It uses a multiple precision package to do its arithmetic"
+" to give a high degree of accuracy. </p> <p> MATE Calc is a fork of GNOME "
+"Calc and part of the MATE Desktop Environment. If you would like to know "
+"more about MATE and MATE Calc, please visit the project's home page. </p>"
+msgstr ""
+
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
+msgid "MATE Calculator"
+msgstr "Calculator MATE"
+
+#. Title of main window
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
+msgid "Calculator"
+msgstr "Calculator"
+
+#: ../data/mate-calc.desktop.in.h:3
+msgid "Perform arithmetic, scientific or financial calculations"
+msgstr "Far aritmetic, scientific o financial calculationes"
+
+#: ../src/currency-manager.c:30
+msgid "UAE Dirham"
+msgstr ""
+
+#: ../src/currency-manager.c:31
+msgid "Australian Dollar"
+msgstr "Australian dollar"
+
+#: ../src/currency-manager.c:32
+msgid "Bulgarian Lev"
+msgstr "Bulgarian lev"
+
+#: ../src/currency-manager.c:33
+msgid "Bahraini Dinar"
+msgstr ""
+
+#: ../src/currency-manager.c:34
+msgid "Brunei Dollar"
+msgstr ""
+
+#: ../src/currency-manager.c:35
+msgid "Brazilian Real"
+msgstr "Brasilian real"
+
+#: ../src/currency-manager.c:36
+msgid "Botswana Pula"
+msgstr ""
+
+#: ../src/currency-manager.c:37
+msgid "Canadian Dollar"
+msgstr "Canadian dollar"
+
+#: ../src/currency-manager.c:38
+msgid "CFA Franc"
+msgstr ""
+
+#: ../src/currency-manager.c:39
+msgid "Swiss Franc"
+msgstr "Sviss franc"
+
+#: ../src/currency-manager.c:40
+msgid "Chilean Peso"
+msgstr ""
+
+#: ../src/currency-manager.c:41
+msgid "Chinese Yuan"
+msgstr "Chinesi yuan"
+
+#: ../src/currency-manager.c:42
+msgid "Colombian Peso"
+msgstr ""
+
+#: ../src/currency-manager.c:43
+msgid "Czech Koruna"
+msgstr "Tchec koruna"
+
+#: ../src/currency-manager.c:44
+msgid "Danish Krone"
+msgstr ""
+
+#: ../src/currency-manager.c:45
+msgid "Algerian Dinar"
+msgstr ""
+
+#: ../src/currency-manager.c:46
+msgid "Estonian Kroon"
+msgstr ""
+
+#: ../src/currency-manager.c:47
+msgid "Euro"
+msgstr "Euro"
+
+#: ../src/currency-manager.c:48
+msgid "Pound Sterling"
+msgstr ""
+
+#: ../src/currency-manager.c:49
+msgid "Hong Kong Dollar"
+msgstr ""
+
+#: ../src/currency-manager.c:50
+msgid "Croatian Kuna"
+msgstr "Croatian kuna"
+
+#: ../src/currency-manager.c:51
+msgid "Hungarian Forint"
+msgstr "Hungarian forint"
+
+#: ../src/currency-manager.c:52
+msgid "Indonesian Rupiah"
+msgstr ""
+
+#: ../src/currency-manager.c:53
+msgid "Israeli New Shekel"
+msgstr ""
+
+#: ../src/currency-manager.c:54
+msgid "Indian Rupee"
+msgstr ""
+
+#: ../src/currency-manager.c:55
+msgid "Iranian Rial"
+msgstr ""
+
+#: ../src/currency-manager.c:56
+msgid "Icelandic Krona"
+msgstr "Islandesi krona"
+
+#: ../src/currency-manager.c:57
+msgid "Japanese Yen"
+msgstr "Japanesi yen"
+
+#: ../src/currency-manager.c:58
+msgid "South Korean Won"
+msgstr "Sud-Korean won"
+
+#: ../src/currency-manager.c:59
+msgid "Kuwaiti Dinar"
+msgstr ""
+
+#: ../src/currency-manager.c:60
+msgid "Kazakhstani Tenge"
+msgstr ""
+
+#: ../src/currency-manager.c:61
+msgid "Sri Lankan Rupee"
+msgstr ""
+
+#: ../src/currency-manager.c:62
+msgid "Lithuanian Litas"
+msgstr "Lituanian litas"
+
+#: ../src/currency-manager.c:63
+msgid "Latvian Lats"
+msgstr "Latvian lats"
+
+#: ../src/currency-manager.c:64
+msgid "Libyan Dinar"
+msgstr ""
+
+#: ../src/currency-manager.c:65
+msgid "Mauritian Rupee"
+msgstr ""
+
+#: ../src/currency-manager.c:66
+msgid "Mexican Peso"
+msgstr "Mexican peso"
+
+#: ../src/currency-manager.c:67
+msgid "Malaysian Ringgit"
+msgstr ""
+
+#: ../src/currency-manager.c:68
+msgid "Norwegian Krone"
+msgstr ""
+
+#: ../src/currency-manager.c:69
+msgid "Nepalese Rupee"
+msgstr ""
+
+#: ../src/currency-manager.c:70
+msgid "New Zealand Dollar"
+msgstr "Nov-Zelandan dollar"
+
+#: ../src/currency-manager.c:71
+msgid "Omani Rial"
+msgstr ""
+
+#: ../src/currency-manager.c:72
+msgid "Peruvian Nuevo Sol"
+msgstr ""
+
+#: ../src/currency-manager.c:73
+msgid "Philippine Peso"
+msgstr ""
+
+#: ../src/currency-manager.c:74
+msgid "Pakistani Rupee"
+msgstr ""
+
+#: ../src/currency-manager.c:75
+msgid "Polish Zloty"
+msgstr ""
+
+#: ../src/currency-manager.c:76
+msgid "Qatari Riyal"
+msgstr ""
+
+#: ../src/currency-manager.c:77
+msgid "New Romanian Leu"
+msgstr "Rumanian nov leu"
+
+#: ../src/currency-manager.c:78
+msgid "Russian Rouble"
+msgstr "Russ ruble"
+
+#: ../src/currency-manager.c:79
+msgid "Saudi Riyal"
+msgstr ""
+
+#: ../src/currency-manager.c:80
+msgid "Swedish Krona"
+msgstr "Svedese krona"
+
+#: ../src/currency-manager.c:81
+msgid "Singapore Dollar"
+msgstr ""
+
+#: ../src/currency-manager.c:82
+msgid "Thai Baht"
+msgstr "Thai baht"
+
+#: ../src/currency-manager.c:83
+msgid "Tunisian Dinar"
+msgstr ""
+
+#: ../src/currency-manager.c:84
+msgid "New Turkish Lira"
+msgstr ""
+
+#: ../src/currency-manager.c:85
+msgid "T&T Dollar (TTD)"
+msgstr ""
+
+#: ../src/currency-manager.c:86
+msgid "US Dollar"
+msgstr "US dollar"
+
+#: ../src/currency-manager.c:87
+msgid "Uruguayan Peso"
+msgstr ""
+
+#: ../src/currency-manager.c:88
+msgid "Venezuelan Bolívar"
+msgstr ""
+
+#: ../src/currency-manager.c:89
+msgid "South African Rand"
+msgstr "Sud-African rand"
+
+#: ../src/financial.c:70
+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:79
+#, c-format
+msgid ""
+"Usage:\n"
+"  %s — Perform mathematical calculations"
+msgstr ""
+
+#. Description on mate-calc command-line help options displayed on command-
+#. line
+#: ../src/mate-calc.c:87
+#, c-format
+msgid ""
+"Help Options:\n"
+"  -v, --version                   Show release version\n"
+"  -h, -?, --help                  Show help options\n"
+"  --help-all                      Show all help options\n"
+"  --help-gtk                      Show GTK+ options"
+msgstr ""
+
+#. Description on mate-calc command-line GTK+ options displayed on command-
+#. line
+#: ../src/mate-calc.c:98
+#, c-format
+msgid ""
+"GTK+ Options:\n"
+"  --class=CLASS                   Program class as used by the window manager\n"
+"  --name=NAME                     Program name as used by the window manager\n"
+"  --screen=SCREEN                 X screen to use\n"
+"  --sync                          Make X calls synchronous\n"
+"  --gtk-module=MODULES            Load additional GTK+ modules\n"
+"  --g-fatal-warnings              Make all warnings fatal"
+msgstr ""
+
+#. Description on mate-calc application options displayed on command-line
+#: ../src/mate-calc.c:112
+#, c-format
+msgid ""
+"Application Options:\n"
+"  -s, --solve <equation>          Solve the given equation"
+msgstr ""
+"Optiones de application:\n"
+"  -s, --solve <equation>          Solver li providet equation"
+
+#. Error printed to stderr when user uses --solve argument without an equation
+#: ../src/mate-calc.c:156
+#, 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:166
+#, c-format
+msgid "Unknown argument '%s'"
+msgstr "Ínconosset argument \"%s\""
+
+#. Tooltip for the Pi button
+#: ../src/math-buttons.c:95
+msgid "Pi [Ctrl+P]"
+msgstr "Pi [Ctrl+P]"
+
+#. Tooltip for the Euler's Number button
+#: ../src/math-buttons.c:98
+msgid "Euler’s Number"
+msgstr "Númere de Euler"
+
+#. Tooltip for the subscript button
+#: ../src/math-buttons.c:103
+msgid "Subscript mode [Alt]"
+msgstr ""
+
+#. Tooltip for the superscript button
+#: ../src/math-buttons.c:106
+msgid "Superscript mode [Ctrl]"
+msgstr ""
+
+#. Tooltip for the scientific exponent button
+#: ../src/math-buttons.c:109
+msgid "Scientific exponent [Ctrl+E]"
+msgstr ""
+
+#. Tooltip for the add button
+#: ../src/math-buttons.c:112
+msgid "Add [+]"
+msgstr "Addir [+]"
+
+#. Tooltip for the subtract button
+#: ../src/math-buttons.c:115
+msgid "Subtract [-]"
+msgstr "Subtraer [-]"
+
+#. Tooltip for the multiply button
+#: ../src/math-buttons.c:118
+msgid "Multiply [*]"
+msgstr "Multiplicar [*]"
+
+#. Tooltip for the divide button
+#: ../src/math-buttons.c:121
+msgid "Divide [/]"
+msgstr "Divider [/]"
+
+#. Tooltip for the modulus divide button
+#: ../src/math-buttons.c:124
+msgid "Modulus divide"
+msgstr ""
+
+#. Tooltip for the additional functions button
+#: ../src/math-buttons.c:127
+msgid "Additional Functions"
+msgstr "Additional functiones"
+
+#. Tooltip for the exponent button
+#: ../src/math-buttons.c:130
+msgid "Exponent [^ or **]"
+msgstr "Exponentiation [^ o **]"
+
+#. Tooltip for the square button
+#: ../src/math-buttons.c:133
+msgid "Square [Ctrl+2]"
+msgstr "Quadrar [Ctrl+2]"
+
+#. Tooltip for the percentage button
+#: ../src/math-buttons.c:136
+msgid "Percentage [%]"
+msgstr "Percentage [%]"
+
+#. Tooltip for the factorial button
+#: ../src/math-buttons.c:139
+msgid "Factorial [!]"
+msgstr "Factoriale [!]"
+
+#. Tooltip for the absolute value button
+#: ../src/math-buttons.c:142
+msgid "Absolute value [|]"
+msgstr "Absolut valore [|]"
+
+#. Tooltip for the complex argument component button
+#: ../src/math-buttons.c:145
+msgid "Complex argument"
+msgstr ""
+
+#. Tooltip for the complex conjugate button
+#: ../src/math-buttons.c:148
+msgid "Complex conjugate"
+msgstr ""
+
+#. Tooltip for the root button
+#: ../src/math-buttons.c:151
+msgid "Root [Ctrl+R]"
+msgstr "Radica [Ctrl+R]"
+
+#. Tooltip for the square root button
+#: ../src/math-buttons.c:154
+msgid "Square root [Ctrl+R]"
+msgstr "Radica quadratic [Ctrl+R]"
+
+#. Tooltip for the logarithm button
+#: ../src/math-buttons.c:157
+msgid "Logarithm"
+msgstr "Logaritme"
+
+#. Tooltip for the natural logarithm button
+#: ../src/math-buttons.c:160
+msgid "Natural Logarithm"
+msgstr ""
+
+#. Tooltip for the sine button
+#: ../src/math-buttons.c:163
+msgid "Sine"
+msgstr "Sinus"
+
+#. Tooltip for the cosine button
+#: ../src/math-buttons.c:166
+msgid "Cosine"
+msgstr "Cosinus"
+
+#. Tooltip for the tangent button
+#: ../src/math-buttons.c:169
+msgid "Tangent"
+msgstr "Tangente"
+
+#. Tooltip for the hyperbolic sine button
+#: ../src/math-buttons.c:172
+msgid "Hyperbolic Sine"
+msgstr "Hipérbolic sinus"
+
+#. Tooltip for the hyperbolic cosine button
+#: ../src/math-buttons.c:175
+msgid "Hyperbolic Cosine"
+msgstr "Hipérbolic cosinus"
+
+#. Tooltip for the hyperbolic tangent button
+#: ../src/math-buttons.c:178
+msgid "Hyperbolic Tangent"
+msgstr ""
+
+#. Tooltip for the inverse sine button
+#: ../src/math-buttons.c:181
+msgid "Inverse Sine"
+msgstr ""
+
+#. Tooltip for the inverse cosine button
+#: ../src/math-buttons.c:184
+msgid "Inverse Cosine"
+msgstr ""
+
+#. Tooltip for the inverse tangent button
+#: ../src/math-buttons.c:187
+msgid "Inverse Tangent"
+msgstr ""
+
+#. Tooltip for the inverse button
+#: ../src/math-buttons.c:190
+msgid "Inverse [Ctrl+I]"
+msgstr ""
+
+#. Tooltip for the boolean AND button
+#: ../src/math-buttons.c:193
+msgid "Boolean AND"
+msgstr "Boolean E"
+
+#. Tooltip for the boolean OR button
+#: ../src/math-buttons.c:196
+msgid "Boolean OR"
+msgstr "Boolean O"
+
+#. Tooltip for the exclusive OR button
+#: ../src/math-buttons.c:199
+msgid "Boolean Exclusive OR"
+msgstr "Boolean Exclusiv O"
+
+#. Tooltip for the boolean NOT button
+#: ../src/math-buttons.c:202
+msgid "Boolean NOT"
+msgstr "Boolean NE"
+
+#. Tooltip for the integer component button
+#: ../src/math-buttons.c:205 ../src/math-buttons.c:992
+msgid "Integer Component"
+msgstr "Integral parte"
+
+#. Tooltip for the fractional component button
+#: ../src/math-buttons.c:208 ../src/math-buttons.c:994
+msgid "Fractional Component"
+msgstr "Fractional parte"
+
+#. Tooltip for the real component button
+#: ../src/math-buttons.c:211
+msgid "Real Component"
+msgstr "Real parte"
+
+#. Tooltip for the imaginary component button
+#: ../src/math-buttons.c:214
+msgid "Imaginary Component"
+msgstr "Imaginari parte"
+
+#. Tooltip for the ones' complement button
+#: ../src/math-buttons.c:217
+msgid "Ones' Complement"
+msgstr ""
+
+#. Tooltip for the two's complement button
+#: ../src/math-buttons.c:220
+msgid "Two's Complement"
+msgstr ""
+
+#. Tooltip for the truncate button
+#: ../src/math-buttons.c:223
+msgid "Truncate"
+msgstr ""
+
+#. Tooltip for the start group button
+#: ../src/math-buttons.c:226
+msgid "Start Group [(]"
+msgstr "Comense de gruppe [(]"
+
+#. Tooltip for the end group button
+#: ../src/math-buttons.c:229
+msgid "End Group [)]"
+msgstr "Fin de gruppe [)]"
+
+#. Tooltip for the solve button
+#: ../src/math-buttons.c:238
+msgid "Calculate Result"
+msgstr "Calcular li resultate"
+
+#. Tooltip for the factor button
+#: ../src/math-buttons.c:241
+msgid "Factorize [Ctrl+F]"
+msgstr "Factorisar [Ctrl+F]"
+
+#. Tooltip for the clear button
+#: ../src/math-buttons.c:244
+msgid "Clear Display [Escape]"
+msgstr "Vacuar li ecran [Esc]"
+
+#. Tooltip for the undo button
+#: ../src/math-buttons.c:247
+msgid "Undo [Ctrl+Z]"
+msgstr "Defar [Ctrl+Z]"
+
+#. Tooltip for the shift left button
+#: ../src/math-buttons.c:250
+msgid "Shift Left [<<]"
+msgstr ""
+
+#. Tooltip for the shift right button
+#: ../src/math-buttons.c:253
+msgid "Shift Right [>>]"
+msgstr ""
+
+#. Tooltip for the double declining depreciation button
+#: ../src/math-buttons.c:259
+msgid "Double Declining Depreciation"
+msgstr ""
+
+#. Tooltip for the financial term button
+#: ../src/math-buttons.c:265
+msgid "Financial Term"
+msgstr ""
+
+#. Tooltip for the sum of the years digits depreciation button
+#: ../src/math-buttons.c:268
+msgid "Sum of the Years Digits Depreciation"
+msgstr ""
+
+#. Tooltip for the straight line depreciation button
+#: ../src/math-buttons.c:271
+msgid "Straight Line Depreciation"
+msgstr ""
+
+#. Number display mode combo: Binary, e.g. 10011010010₂
+#: ../src/math-buttons.c:624
+msgid "Binary"
+msgstr "Binari"
+
+#. Number display mode combo: Octal, e.g. 2322₈
+#: ../src/math-buttons.c:628
+msgid "Octal"
+msgstr "Octal"
+
+#. Number display mode combo: Decimal, e.g. 1234
+#: ../src/math-buttons.c:632
+msgid "Decimal"
+msgstr "Decimal"
+
+#. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
+#: ../src/math-buttons.c:636
+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:903 ../src/math-buttons.c:946
+#, c-format
+msgid "_%d place"
+msgid_plural "_%d places"
+msgstr[0] ""
+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:907 ../src/math-buttons.c:950
+#, c-format
+msgid "%d place"
+msgid_plural "%d places"
+msgstr[0] ""
+msgstr[1] ""
+
+#. Tooltip for the round button
+#: ../src/math-buttons.c:996
+msgid "Round"
+msgstr ""
+
+#. Tooltip for the floor button
+#: ../src/math-buttons.c:998
+msgid "Floor"
+msgstr ""
+
+#. Tooltip for the ceiling button
+#: ../src/math-buttons.c:1000
+msgid "Ceiling"
+msgstr ""
+
+#. Tooltip for the ceiling button
+#: ../src/math-buttons.c:1002
+msgid "Sign"
+msgstr "Signe"
+
+#. Label that is displayed between the two conversion combo boxes, e.g.
+#. "[degrees] in [radians]"
+#: ../src/math-converter.c:412
+msgid " in "
+msgstr " in "
+
+#. Tooltip for swap conversion button
+#: ../src/math-converter.c:427
+msgid "Switch conversion units"
+msgstr ""
+
+#. Error shown when trying to undo with no undo history
+#: ../src/math-equation.c:459
+msgid "No undo history"
+msgstr ""
+
+#. Error shown when trying to redo with no redo history
+#: ../src/math-equation.c:486
+msgid "No redo history"
+msgstr ""
+
+#: ../src/math-equation.c:948
+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:1230
+msgid "Overflow. Try a bigger word size"
+msgstr ""
+
+#. Error displayed to user when they an unknown variable is entered
+#: ../src/math-equation.c:1235
+#, c-format
+msgid "Unknown variable '%s'"
+msgstr "Ínconosset variabile \"%s\""
+
+#. Error displayed to user when an unknown function is entered
+#: ../src/math-equation.c:1240
+#, 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:1245
+msgid "Unknown conversion"
+msgstr "Ínconosset convertion"
+
+#. Uncategorized error. Show error token to user
+#: ../src/math-equation.c:1253
+#, 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:1256 ../src/math-equation.c:1261
+msgid "Malformed expression"
+msgstr ""
+
+#: ../src/math-equation.c:1275
+msgid "Calculating"
+msgstr "Calculante"
+
+#. Error displayed when trying to factorize a non-integer value
+#: ../src/math-equation.c:1390
+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:1462
+msgid "No sane value to bitwise shift"
+msgstr ""
+
+#. Message displayed when cannot toggle bit in display
+#: ../src/math-equation.c:1493
+msgid "Displayed value not an integer"
+msgstr ""
+
+#. Digits localized for the given language
+#: ../src/math-equation.c:1916
+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"
+
+#. Preferences dialog: Angle unit combo box: Use degrees for trigonometric
+#. calculations
+#. FIXME: Approximations of 1/(units in a circle), therefore, 360 deg != 400
+#. grads
+#: ../src/math-preferences.c:256 ../src/unit-manager.c:54
+msgid "Degrees"
+msgstr "Gradus"
+
+#. Preferences dialog: Angle unit combo box: Use radians for trigonometric
+#. calculations
+#: ../src/math-preferences.c:260 ../src/unit-manager.c:55
+msgid "Radians"
+msgstr "Radianes"
+
+#. Preferences dialog: Angle unit combo box: Use gradians for trigonometric
+#. calculations
+#: ../src/math-preferences.c:264 ../src/unit-manager.c:56
+msgid "Gradians"
+msgstr ""
+
+#. Number display mode combo: Automatic, e.g. 1234 (or scientific for large
+#. number 1.234×10^99)
+#: ../src/math-preferences.c:274
+msgid "Automatic"
+msgstr "Automatic"
+
+#. Number display mode combo: Fixed, e.g. 1234
+#: ../src/math-preferences.c:278
+msgid "Fixed"
+msgstr "Fixat"
+
+#. Number display mode combo: Scientific, e.g. 1.234×10^3
+#: ../src/math-preferences.c:282
+msgid "Scientific"
+msgstr "Scientific"
+
+#. Number display mode combo: Engineering, e.g. 1.234k
+#: ../src/math-preferences.c:286
+msgid "Engineering"
+msgstr "Ingenieric"
+
+#. Label used in preferences dialog.  The %d is replaced by a spinbutton
+#: ../src/math-preferences.c:297
+#, c-format
+msgid "Show %d decimal _places"
+msgstr ""
+
+#. Translators: Error message displayed when unable to launch help browser
+#: ../src/math-window.c:212
+msgid "Unable to open help file"
+msgstr ""
+
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "Plu li Calculator MATE"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Calculator con financial e scientific mode"
+
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "OIS <[email protected]>, 2019"
+
+#. Calculator menu
+#: ../src/math-window.c:403
+msgid "_Calculator"
+msgstr "_Calculator"
+
+#. Mode menu
+#: ../src/math-window.c:405
+msgid "_Mode"
+msgstr "_Mode"
+
+#. Help menu label
+#: ../src/math-window.c:407
+msgid "_Help"
+msgstr "Au_xilie"
+
+#. Basic menu label
+#: ../src/math-window.c:409
+msgid "_Basic"
+msgstr "_Basic"
+
+#. Advanced menu label
+#: ../src/math-window.c:411
+msgid "_Advanced"
+msgstr "_Avansat"
+
+#. Financial menu label
+#: ../src/math-window.c:413
+msgid "_Financial"
+msgstr "_Financial"
+
+#. Programming menu label
+#: ../src/math-window.c:415
+msgid "_Programming"
+msgstr "_Programmation"
+
+#. Help>Contents menu label
+#: ../src/math-window.c:417
+msgid "_Contents"
+msgstr "_Contenete"
+
+#: ../src/math-window.c:420
+msgid "_Copy"
+msgstr "_Copiar"
+
+#: ../src/math-window.c:422
+msgid "_Paste"
+msgstr "Co_llar"
+
+#: ../src/math-window.c:424
+msgid "_Undo"
+msgstr "_Defar"
+
+#: ../src/math-window.c:426
+msgid "_Redo"
+msgstr "_Refar"
+
+#: ../src/math-window.c:429
+msgid "_Preferences"
+msgstr "_Preferenties"
+
+#: ../src/math-window.c:431
+msgid "_Quit"
+msgstr "S_urtir"
+
+#: ../src/math-window.c:448
+msgid "_About"
+msgstr "_Pri"
+
+#. Translators: Error displayed when boolean AND attempted on non-integer
+#. values
+#: ../src/mp-binary.c:115
+msgid "Boolean AND is only defined for positive integers"
+msgstr ""
+
+#. Translators: Error displayed when boolean OR attempted on non-integer
+#. values
+#: ../src/mp-binary.c:128
+msgid "Boolean OR is only defined for positive integers"
+msgstr ""
+
+#. Translators: Error displayed when boolean XOR attempted on non-integer
+#. values
+#: ../src/mp-binary.c:141
+msgid "Boolean XOR is only defined for positive integers"
+msgstr ""
+
+#. Translators: Error displayed when boolean XOR attempted on non-integer
+#. values
+#: ../src/mp-binary.c:156
+msgid "Boolean NOT is only defined for positive integers"
+msgstr ""
+
+#. Translators: Error displayed when bit shift attempted on non-integer values
+#: ../src/mp-binary.c:190
+msgid "Shift is only possible on integer values"
+msgstr ""
+
+#. Translators: Error display when attempting to take argument of zero
+#: ../src/mp.c:148
+msgid "Argument not defined for zero"
+msgstr ""
+
+#: ../src/mp.c:299
+msgid "Overflow: the result couldn't be calculated"
+msgstr ""
+
+#. Translators: Error displayed attempted to divide by zero
+#: ../src/mp.c:644 ../src/mp.c:676 ../src/mp.c:1605
+msgid "Division by zero is undefined"
+msgstr ""
+
+#. Translators: Error displayed when attempting to take logarithm of zero
+#: ../src/mp.c:1276 ../src/mp.c:1313
+msgid "Logarithm of zero is undefined"
+msgstr ""
+
+#. Translators: Error displayed when attempted to raise 0 to a negative
+#. exponent
+#: ../src/mp.c:1680 ../src/mp.c:1994
+msgid "The power of zero is undefined for a negative exponent"
+msgstr ""
+
+#: ../src/mp.c:1704
+msgid "Reciprocal of zero is undefined"
+msgstr ""
+
+#: ../src/mp.c:1789
+msgid "Root must be non-zero"
+msgstr ""
+
+#: ../src/mp.c:1807
+msgid "Negative root of zero is undefined"
+msgstr ""
+
+#: ../src/mp.c:1813
+msgid "nth root of negative number is undefined for even n"
+msgstr ""
+
+#. Translators: Error displayed when attempted take the factorial of a
+#. fractional number
+#: ../src/mp.c:1934
+msgid "Factorial is only defined for natural numbers"
+msgstr ""
+
+#. Translators: Error displayed when attemping to do a modulus division on
+#. non-integer numbers
+#: ../src/mp.c:1954
+msgid "Modulus division is only defined for integers"
+msgstr ""
+
+#. Translators: Error displayed when tangent value is undefined
+#: ../src/mp-trigonometric.c:310
+msgid ""
+"Tangent is undefined for angles that are multiples of π (180°) from π∕2 "
+"(90°)"
+msgstr ""
+
+#. Translators: Error displayed when inverse sine value is undefined
+#: ../src/mp-trigonometric.c:355
+msgid "Inverse sine is undefined for values outside [-1, 1]"
+msgstr ""
+
+#. Translators: Error displayed when inverse cosine value is undefined
+#: ../src/mp-trigonometric.c:372
+msgid "Inverse cosine is undefined for values outside [-1, 1]"
+msgstr ""
+
+#. Translators: Error displayed when inverse hyperbolic cosine value is
+#. undefined
+#: ../src/mp-trigonometric.c:591
+msgid "Inverse hyperbolic cosine is undefined for values less than one"
+msgstr ""
+
+#. Translators: Error displayed when inverse hyperbolic tangent value is
+#. undefined
+#: ../src/mp-trigonometric.c:615
+msgid "Inverse hyperbolic tangent is undefined for values outside [-1, 1]"
+msgstr "Inversi hipérbolic tangente es índefinit por valores éxter [-1, 1]"
+
+#: ../src/unit-manager.c:54
+#, c-format
+msgctxt "unit-format"
+msgid "%s degrees"
+msgstr "%s gradus"
+
+#: ../src/unit-manager.c:54
+msgctxt "unit-symbols"
+msgid "degree,degrees,deg"
+msgstr ""
+
+#: ../src/unit-manager.c:55
+#, c-format
+msgctxt "unit-format"
+msgid "%s radians"
+msgstr "%s radianes"
+
+#: ../src/unit-manager.c:55
+msgctxt "unit-symbols"
+msgid "radian,radians,rad"
+msgstr ""
+
+#: ../src/unit-manager.c:56
+#, c-format
+msgctxt "unit-format"
+msgid "%s gradians"
+msgstr ""
+
+#: ../src/unit-manager.c:56
+msgctxt "unit-symbols"
+msgid "gradian,gradians,grad"
+msgstr ""
+
+#: ../src/unit-manager.c:57
+msgid "Parsecs"
+msgstr "Parsecs"
+
+#: ../src/unit-manager.c:57
+#, c-format
+msgctxt "unit-format"
+msgid "%s pc"
+msgstr ""
+
+#: ../src/unit-manager.c:57
+msgctxt "unit-symbols"
+msgid "parsec,parsecs,pc"
+msgstr ""
+
+#: ../src/unit-manager.c:58
+msgid "Light Years"
+msgstr "Annus luce"
+
+#: ../src/unit-manager.c:58
+#, c-format
+msgctxt "unit-format"
+msgid "%s ly"
+msgstr "%s al"
+
+#: ../src/unit-manager.c:58
+msgctxt "unit-symbols"
+msgid "lightyear,lightyears,ly"
+msgstr "annu luce,annu-luce,annus luce,annus-luce,ly,al"
+
+#: ../src/unit-manager.c:59
+msgid "Astronomical Units"
+msgstr "Astronomic unités"
+
+#: ../src/unit-manager.c:59
+#, c-format
+msgctxt "unit-format"
+msgid "%s au"
+msgstr "%s au"
+
+#: ../src/unit-manager.c:59
+msgctxt "unit-symbols"
+msgid "au"
+msgstr "au"
+
+#: ../src/unit-manager.c:60
+msgid "Nautical Miles"
+msgstr "Marin milies"
+
+#: ../src/unit-manager.c:60
+#, c-format
+msgctxt "unit-format"
+msgid "%s nmi"
+msgstr ""
+
+#: ../src/unit-manager.c:60
+msgctxt "unit-symbols"
+msgid "nmi"
+msgstr "nmi"
+
+#: ../src/unit-manager.c:61
+msgid "Miles"
+msgstr "Milies"
+
+#: ../src/unit-manager.c:61
+#, c-format
+msgctxt "unit-format"
+msgid "%s mi"
+msgstr "%s mi"
+
+#: ../src/unit-manager.c:61
+msgctxt "unit-symbols"
+msgid "mile,miles,mi"
+msgstr ""
+
+#: ../src/unit-manager.c:62
+msgid "Kilometers"
+msgstr "Kilometres"
+
+#: ../src/unit-manager.c:62
+#, c-format
+msgctxt "unit-format"
+msgid "%s km"
+msgstr "%s km"
+
+#: ../src/unit-manager.c:62
+msgctxt "unit-symbols"
+msgid "kilometer,kilometers,km,kms"
+msgstr ""
+
+#: ../src/unit-manager.c:63
+msgid "Cables"
+msgstr "Cables"
+
+#: ../src/unit-manager.c:63
+#, c-format
+msgctxt "unit-format"
+msgid "%s cb"
+msgstr ""
+
+#: ../src/unit-manager.c:63
+msgctxt "unit-symbols"
+msgid "cable,cables,cb"
+msgstr ""
+
+#: ../src/unit-manager.c:64
+msgid "Fathoms"
+msgstr ""
+
+#: ../src/unit-manager.c:64
+#, c-format
+msgctxt "unit-format"
+msgid "%s ftm"
+msgstr ""
+
+#: ../src/unit-manager.c:64
+msgctxt "unit-symbols"
+msgid "fathom,fathoms,ftm"
+msgstr ""
+
+#: ../src/unit-manager.c:65
+msgid "Meters"
+msgstr "Metres"
+
+#: ../src/unit-manager.c:65
+#, c-format
+msgctxt "unit-format"
+msgid "%s m"
+msgstr "%s m"
+
+#: ../src/unit-manager.c:65
+msgctxt "unit-symbols"
+msgid "meter,meters,m"
+msgstr "metre,metres,m"
+
+#: ../src/unit-manager.c:66
+msgid "Yards"
+msgstr "Yardes"
+
+#: ../src/unit-manager.c:66
+#, c-format
+msgctxt "unit-format"
+msgid "%s yd"
+msgstr "%s yd"
+
+#: ../src/unit-manager.c:66
+msgctxt "unit-symbols"
+msgid "yard,yards,yd"
+msgstr ""
+
+#: ../src/unit-manager.c:67
+msgid "Feet"
+msgstr ""
+
+#: ../src/unit-manager.c:67
+#, c-format
+msgctxt "unit-format"
+msgid "%s ft"
+msgstr ""
+
+#: ../src/unit-manager.c:67
+msgctxt "unit-symbols"
+msgid "foot,feet,ft"
+msgstr ""
+
+#: ../src/unit-manager.c:68
+msgid "Inches"
+msgstr "Inches"
+
+#: ../src/unit-manager.c:68
+#, c-format
+msgctxt "unit-format"
+msgid "%s in"
+msgstr "%s in"
+
+#: ../src/unit-manager.c:68
+msgctxt "unit-symbols"
+msgid "inch,inches,in"
+msgstr "inch,inches,in"
+
+#: ../src/unit-manager.c:69
+msgid "Centimeters"
+msgstr "Centimetres"
+
+#: ../src/unit-manager.c:69
+#, c-format
+msgctxt "unit-format"
+msgid "%s cm"
+msgstr "%s cm"
+
+#: ../src/unit-manager.c:69
+msgctxt "unit-symbols"
+msgid "centimeter,centimeters,cm,cms"
+msgstr ""
+
+#: ../src/unit-manager.c:70
+msgid "Millimeters"
+msgstr "Millimetres"
+
+#: ../src/unit-manager.c:70
+#, c-format
+msgctxt "unit-format"
+msgid "%s mm"
+msgstr "%s mm"
+
+#: ../src/unit-manager.c:70
+msgctxt "unit-symbols"
+msgid "millimeter,millimeters,mm"
+msgstr ""
+
+#: ../src/unit-manager.c:71
+msgid "Micrometers"
+msgstr "Micrometres"
+
+#: ../src/unit-manager.c:71
+#, c-format
+msgctxt "unit-format"
+msgid "%s μm"
+msgstr "%s μm"
+
+#: ../src/unit-manager.c:71
+msgctxt "unit-symbols"
+msgid "micrometer,micrometers,um"
+msgstr ""
+
+#: ../src/unit-manager.c:72
+msgid "Nanometers"
+msgstr "Nanometres"
+
+#: ../src/unit-manager.c:72
+#, c-format
+msgctxt "unit-format"
+msgid "%s nm"
+msgstr "%s nm"
+
+#: ../src/unit-manager.c:72
+msgctxt "unit-symbols"
+msgid "nanometer,nanometers,nm"
+msgstr ""
+
+#: ../src/unit-manager.c:73
+msgid "Hectares"
+msgstr "Hectares"
+
+#: ../src/unit-manager.c:73
+#, c-format
+msgctxt "unit-format"
+msgid "%s ha"
+msgstr "%s ha"
+
+#: ../src/unit-manager.c:73
+msgctxt "unit-symbols"
+msgid "hectare,hectares,ha"
+msgstr "hectare,hectares,ha"
+
+#: ../src/unit-manager.c:74
+msgid "Acres"
+msgstr "Acres"
+
+#: ../src/unit-manager.c:74
+#, c-format
+msgctxt "unit-format"
+msgid "%s acres"
+msgstr "%s acres"
+
+#: ../src/unit-manager.c:74
+msgctxt "unit-symbols"
+msgid "acre,acres"
+msgstr "acre,acres"
+
+#: ../src/unit-manager.c:75
+msgid "Square Meters"
+msgstr "Quadratic metres"
+
+#: ../src/unit-manager.c:75
+#, c-format
+msgctxt "unit-format"
+msgid "%s m²"
+msgstr "%s m²"
+
+#: ../src/unit-manager.c:75
+msgctxt "unit-symbols"
+msgid "m²"
+msgstr "m²"
+
+#: ../src/unit-manager.c:76
+msgid "Square Centimeters"
+msgstr "Quadratic centimetres"
+
+#: ../src/unit-manager.c:76
+#, c-format
+msgctxt "unit-format"
+msgid "%s cm²"
+msgstr "%s cm²"
+
+#: ../src/unit-manager.c:76
+msgctxt "unit-symbols"
+msgid "cm²"
+msgstr "cm²"
+
+#: ../src/unit-manager.c:77
+msgid "Square Millimeters"
+msgstr "Quadratic millimetres"
+
+#: ../src/unit-manager.c:77
+#, c-format
+msgctxt "unit-format"
+msgid "%s mm²"
+msgstr "%s mm²"
+
+#: ../src/unit-manager.c:77
+msgctxt "unit-symbols"
+msgid "mm²"
+msgstr "mm²"
+
+#: ../src/unit-manager.c:78
+msgid "Cubic Meters"
+msgstr "Cubic metres"
+
+#: ../src/unit-manager.c:78
+#, c-format
+msgctxt "unit-format"
+msgid "%s m³"
+msgstr "%s m³"
+
+#: ../src/unit-manager.c:78
+msgctxt "unit-symbols"
+msgid "m³"
+msgstr "m³"
+
+#: ../src/unit-manager.c:79
+msgid "Gallons"
+msgstr "Gallones"
+
+#: ../src/unit-manager.c:79
+#, c-format
+msgctxt "unit-format"
+msgid "%s gal"
+msgstr ""
+
+#: ../src/unit-manager.c:79
+msgctxt "unit-symbols"
+msgid "gallon,gallons,gal"
+msgstr ""
+
+#: ../src/unit-manager.c:80
+msgid "Litres"
+msgstr "Litres"
+
+#: ../src/unit-manager.c:80
+#, c-format
+msgctxt "unit-format"
+msgid "%s L"
+msgstr "%s L"
+
+#: ../src/unit-manager.c:80
+msgctxt "unit-symbols"
+msgid "litre,litres,liter,liters,L"
+msgstr ""
+
+#: ../src/unit-manager.c:81
+msgid "Quarts"
+msgstr "Quartes"
+
+#: ../src/unit-manager.c:81
+#, c-format
+msgctxt "unit-format"
+msgid "%s qt"
+msgstr ""
+
+#: ../src/unit-manager.c:81
+msgctxt "unit-symbols"
+msgid "quart,quarts,qt"
+msgstr ""
+
+#: ../src/unit-manager.c:82
+msgid "Pints"
+msgstr "Pintes"
+
+#: ../src/unit-manager.c:82
+#, c-format
+msgctxt "unit-format"
+msgid "%s pt"
+msgstr ""
+
+#: ../src/unit-manager.c:82
+msgctxt "unit-symbols"
+msgid "pint,pints,pt"
+msgstr "pinte,pintes,pt"
+
+#: ../src/unit-manager.c:83
+msgid "Millilitres"
+msgstr "Millilitres"
+
+#: ../src/unit-manager.c:83
+#, c-format
+msgctxt "unit-format"
+msgid "%s mL"
+msgstr "%s mL"
+
+#: ../src/unit-manager.c:83
+msgctxt "unit-symbols"
+msgid "millilitre,millilitres,milliliter,milliliters,mL,cm³"
+msgstr ""
+
+#: ../src/unit-manager.c:84
+msgid "Microlitres"
+msgstr "Microlitres"
+
+#: ../src/unit-manager.c:84
+#, c-format
+msgctxt "unit-format"
+msgid "%s μL"
+msgstr "%s μL"
+
+#: ../src/unit-manager.c:84
+msgctxt "unit-symbols"
+msgid "mm³,μL,uL"
+msgstr ""
+
+#: ../src/unit-manager.c:85
+msgid "Tonnes"
+msgstr "Tonnes"
+
+#: ../src/unit-manager.c:85
+#, c-format
+msgctxt "unit-format"
+msgid "%s T"
+msgstr ""
+
+#: ../src/unit-manager.c:85
+msgctxt "unit-symbols"
+msgid "tonne,tonnes"
+msgstr ""
+
+#: ../src/unit-manager.c:86
+msgid "Kilograms"
+msgstr "Kilogramms"
+
+#: ../src/unit-manager.c:86
+#, c-format
+msgctxt "unit-format"
+msgid "%s kg"
+msgstr "%s kg"
+
+#: ../src/unit-manager.c:86
+msgctxt "unit-symbols"
+msgid "kilogram,kilograms,kilogramme,kilogrammes,kg,kgs"
+msgstr ""
+
+#: ../src/unit-manager.c:87
+msgid "Pounds"
+msgstr "Pundes"
+
+#: ../src/unit-manager.c:87
+#, c-format
+msgctxt "unit-format"
+msgid "%s lb"
+msgstr ""
+
+#: ../src/unit-manager.c:87
+msgctxt "unit-symbols"
+msgid "pound,pounds,lb"
+msgstr ""
+
+#: ../src/unit-manager.c:88
+msgid "Ounces"
+msgstr "Uncies"
+
+#: ../src/unit-manager.c:88
+#, c-format
+msgctxt "unit-format"
+msgid "%s oz"
+msgstr ""
+
+#: ../src/unit-manager.c:88
+msgctxt "unit-symbols"
+msgid "ounce,ounces,oz"
+msgstr ""
+
+#: ../src/unit-manager.c:89
+msgid "Grams"
+msgstr "Gramms"
+
+#: ../src/unit-manager.c:89
+#, c-format
+msgctxt "unit-format"
+msgid "%s g"
+msgstr "%s g"
+
+#: ../src/unit-manager.c:89
+msgctxt "unit-symbols"
+msgid "gram,grams,gramme,grammes,g"
+msgstr ""
+
+#: ../src/unit-manager.c:90
+msgid "Years"
+msgstr "Annus"
+
+#: ../src/unit-manager.c:90
+#, c-format
+msgctxt "unit-format"
+msgid "%s years"
+msgstr ""
+
+#: ../src/unit-manager.c:90
+msgctxt "unit-symbols"
+msgid "year,years"
+msgstr ""
+
+#: ../src/unit-manager.c:91
+msgid "Days"
+msgstr "Dies"
+
+#: ../src/unit-manager.c:91
+#, c-format
+msgctxt "unit-format"
+msgid "%s days"
+msgstr "%s dies"
+
+#: ../src/unit-manager.c:91
+msgctxt "unit-symbols"
+msgid "day,days"
+msgstr ""
+
+#: ../src/unit-manager.c:92
+msgid "Hours"
+msgstr "Hores"
+
+#: ../src/unit-manager.c:92
+#, c-format
+msgctxt "unit-format"
+msgid "%s hours"
+msgstr "%s hores"
+
+#: ../src/unit-manager.c:92
+msgctxt "unit-symbols"
+msgid "hour,hours"
+msgstr "hor,hores"
+
+#: ../src/unit-manager.c:93
+msgid "Minutes"
+msgstr "Minutes"
+
+#: ../src/unit-manager.c:93
+#, c-format
+msgctxt "unit-format"
+msgid "%s minutes"
+msgstr ""
+
+#: ../src/unit-manager.c:93
+msgctxt "unit-symbols"
+msgid "minute,minutes"
+msgstr "minute,minutes"
+
+#: ../src/unit-manager.c:94
+msgid "Seconds"
+msgstr "Secondes"
+
+#: ../src/unit-manager.c:94
+#, c-format
+msgctxt "unit-format"
+msgid "%s s"
+msgstr "%s s"
+
+#: ../src/unit-manager.c:94
+msgctxt "unit-symbols"
+msgid "second,seconds,s"
+msgstr "seconde,secondes,sec,s"
+
+#: ../src/unit-manager.c:95
+msgid "Milliseconds"
+msgstr "Millisecondes"
+
+#: ../src/unit-manager.c:95
+#, c-format
+msgctxt "unit-format"
+msgid "%s ms"
+msgstr "%s ms"
+
+#: ../src/unit-manager.c:95
+msgctxt "unit-symbols"
+msgid "millisecond,milliseconds,ms"
+msgstr "milliseconde,millisecondes,ms"
+
+#: ../src/unit-manager.c:96
+msgid "Microseconds"
+msgstr "Microsecondes"
+
+#: ../src/unit-manager.c:96
+#, c-format
+msgctxt "unit-format"
+msgid "%s μs"
+msgstr "%s μs"
+
+#: ../src/unit-manager.c:96
+msgctxt "unit-symbols"
+msgid "microsecond,microseconds,us,μs"
+msgstr "microseconde,microsecondes,mcs,μs"
+
+#: ../src/unit-manager.c:97
+msgid "Celsius"
+msgstr "Centigrad"
+
+#: ../src/unit-manager.c:97
+#, c-format
+msgctxt "unit-format"
+msgid "%s ˚C"
+msgstr ""
+
+#: ../src/unit-manager.c:97
+msgctxt "unit-symbols"
+msgid "degC,˚C"
+msgstr ""
+
+#: ../src/unit-manager.c:98
+msgid "Farenheit"
+msgstr "Farenheit"
+
+#: ../src/unit-manager.c:98
+#, c-format
+msgctxt "unit-format"
+msgid "%s ˚F"
+msgstr ""
+
+#: ../src/unit-manager.c:98
+msgctxt "unit-symbols"
+msgid "degF,˚F"
+msgstr ""
+
+#: ../src/unit-manager.c:99
+msgid "Kelvin"
+msgstr "Kelvin"
+
+#: ../src/unit-manager.c:99
+#, c-format
+msgctxt "unit-format"
+msgid "%s K"
+msgstr "%s K"
+
+#: ../src/unit-manager.c:99
+msgctxt "unit-symbols"
+msgid "K"
+msgstr "K"
+
+#: ../src/unit-manager.c:100
+msgid "Rankine"
+msgstr "Rankine"
+
+#: ../src/unit-manager.c:100
+#, c-format
+msgctxt "unit-format"
+msgid "%s ˚R"
+msgstr ""
+
+#: ../src/unit-manager.c:100
+msgctxt "unit-symbols"
+msgid "degR,˚R,˚Ra"
+msgstr ""
+
+#: ../src/unit-manager.c:109
+msgid "Angle"
+msgstr "Angul"
+
+#: ../src/unit-manager.c:110
+msgid "Length"
+msgstr "Longore"
+
+#: ../src/unit-manager.c:111
+msgid "Area"
+msgstr "Area"
+
+#: ../src/unit-manager.c:112
+msgid "Volume"
+msgstr "Volúmine"
+
+#: ../src/unit-manager.c:113
+msgid "Weight"
+msgstr "Pesa"
+
+#: ../src/unit-manager.c:114
+msgid "Duration"
+msgstr "Duration"
+
+#: ../src/unit-manager.c:115
+msgid "Temperature"
+msgstr "Temperatura"
+
+#: ../src/unit-manager.c:127
+msgid "Currency"
+msgstr "Valuta"
+
+#. Translators: result of currency conversion, %s is the symbol, %%s is the
+#. placeholder for amount, i.e.: USD100
+#: ../src/unit-manager.c:137
+#, c-format
+msgid "%s%%s"
+msgstr ""
diff --git a/po/is.po b/po/is.po
index f4c10d1..3164751 100644
--- a/po/is.po
+++ b/po/is.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Icelandic (https://www.transifex.com/mate/teams/13566/is/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1279,105 +1279,123 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Samúel Jón Gunnarsson <[email protected]>, 2003\n"
-"Sveinn í Felli <[email protected]>, 2012-2016\n"
-"Aðrir FOSS íslenskuþýðendur"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Samúel Jón Gunnarsson <[email protected]>, 2003\n"
+"Sveinn í Felli <[email protected]>, 2012-2016\n"
+"Aðrir FOSS íslenskuþýðendur"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hjálp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Innihald"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Afrita"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Líma"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Afturkalla"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Endurgera"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Stillingar"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Hætta"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Um"
 
diff --git a/po/it.po b/po/it.po
index 04a1bb8..cae6aa3 100644
--- a/po/it.po
+++ b/po/it.po
@@ -4,12 +4,13 @@
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 # 
 # Translators:
-# Marco Mangiacavalli, 2018
 # Marco Bartolucci <[email protected]>, 2018
 # Simone Centonze <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Dario Di Nucci <[email protected]>, 2018
-# Giuseppe Pignataro (Fastbyte01) <[email protected]>, 2018
+# Giuseppe Pignataro <[email protected]>, 2018
+# talorno <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
 # Enrico B. <[email protected]>, 2019
 # 
 #, fuzzy
@@ -17,7 +18,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Enrico B. <[email protected]>, 2019\n"
 "Language-Team: Italian (https://www.transifex.com/mate/teams/13566/it/)\n"
@@ -538,12 +539,12 @@ msgstr ""
 " un fork di GNOME Calc e parte dell'ambiente desktop MATE. Se vuoi sapere di"
 " più su MATE e MATE Calc, visita la home page del progetto. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calcolatrice di MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calcolatrice"
 
@@ -1335,115 +1336,134 @@ msgstr "Mostrare %d _posizioni decimali"
 msgid "Unable to open help file"
 msgstr "Impossibile aprire il file del manuale"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Riconoscimenti-traduzione"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Team Documentazione MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"Calcolatrice di MATE è software libero; è possibile ridistribuirlo e/o "
+"modificarlo secondo i termini della licenza GNU General Public License come "
+"pubblicata dalla Free Software Foundation; versione 2 della licenza, o (a "
+"scelta) una versione successiva."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"Calcolatrice di MATE è distribuito nella speranza che possa risultare utile,"
+" ma SENZA ALCUNA GARANZIA, nemmeno la garanzia implicita di COMMERCIABILITÀ "
+"o APPLICABILITÀ PER UNO SCOPO PARTICOLARE. Per maggiori dettagli consultare "
+"la GNU General Public License."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Una copia della GNU General Public License dovrebbe essere stata fornita con"
+" Calcolatrice di MATE. In caso contrario scrivere a Free Software "
+"Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, "
+"USA"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "Info su Calcolatrice di MATE"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc è un software gratuito; puoi ridistribuirlo e/o modificarlo\n"
-"sotto i termini della licenza  GNU General Public License come pubblicato dalla\n"
-"Free Software Foundation; sia la versione 2 della Licenza, o sia\n"
-"(a propria scelta) qualsiasi altra versione.\n"
-"\n"
-"mate-calc è distribuito nella speranza che sarà utile,\n"
-"ma SENZA ALCUNA GARANZIA; addirittura senza l'implicita garanzia di\n"
-"COMMERCIABILITÀ o IDONEITÀ PER UN PARTICOLARE SCOPO. Vedi la\n"
-"GNU General Public License per ulteriori dettagli.\n"
-"\n"
-"Dovresti aver ricevuto una copia della GNU General Public License\n"
-"insieme a mate-calc; se non è successo, scrivi alla Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 Gli sviluppatori di MATE"
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calcolatrice con modalità finanziaria e scientifica."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Riconoscimenti-traduzione"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calcolatrice"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modalità"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Aiuto"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Base"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avanzata"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finanziaria"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmazione"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Sommario"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copia"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Incolla"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Annulla"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ripeti"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferenze"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Esci"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Informazioni"
 
diff --git a/po/ja.po b/po/ja.po
index 8345039..5713d3f 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -12,15 +12,17 @@
 # ふうせん Fu-sen. | BALLOON a.k.a. Fu-sen., 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # ABE Tsunehiko, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# Aefgh Threenine <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: ABE Tsunehiko, 2018\n"
+"Last-Translator: Aefgh Threenine <[email protected]>, 2019\n"
 "Language-Team: Japanese (https://www.transifex.com/mate/teams/13566/ja/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -509,12 +511,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE 電卓"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "電卓"
 
@@ -1304,8 +1306,52 @@ msgstr "小数点以下第 %d 位まで表示 (_P)"
 msgid "Unable to open help file"
 msgstr "ヘルプを表示できません"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE ドキュメンテーション・チーム"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "財務と科学計算のモードを持つ電卓です。"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "相花 毅 <[email protected]>\n"
@@ -1320,108 +1366,71 @@ msgstr ""
 "松澤 二郎 <[email protected]>\n"
 "日本GNOMEユーザー会 http://www.gnome.gr.jp/"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"MATE 電卓はフリーソフトウェアです。フリーソフトウェア財団が提供する\n"
-"GNU 一般公衆利用許諾契約書の第二版、あるいはそれ以降の版が定める\n"
-"条項の下で本プログラムを再頒布または変更することができます。\n"
-"\n"
-"MATE 電卓は有用とは思いますが、その頒布にあたっては市場性及び\n"
-"特定の目的、その適合性についての暗黙の保証を含めて、いかなる保証も\n"
-"行ないません。詳細については GNU 一般公衆利用許諾契約書をご覧ください。\n"
-"\n"
-"あなたは、本プログラムと一緒に GNU 一般公衆利用許諾契約書の写しを\n"
-"受け取っているはずです。そうでない場合は、Free Software Foundation, Inc., \n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA まで連絡してください。"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "財務と科学計算のモードを持つ電卓です。"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "計算機(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "モード(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ヘルプ(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "基本(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "拡張(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "財務(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "プログラミング(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "目次(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "コピー(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "貼り付け(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "元に戻す(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "やり直す(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "設定(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "終了 (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "情報(_A)"
 
diff --git a/po/ka.po b/po/ka.po
index d29dbfa..60506b6 100644
--- a/po/ka.po
+++ b/po/ka.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Georgian (https://www.transifex.com/mate/teams/13566/ka/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "კალკულატორი"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Vladimer Sichinava ვლადიმერ სიჭინავა <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "კალკულატორი ფინანსური და სამეცნიერო რეჟიმებით"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Vladimer Sichinava ვლადიმერ სიჭინავა <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_კალკულატორი"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_დახმარება"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_მარტივი"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_დამატებითი"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_ფინანსური"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_შინაარსი"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_კოპირება"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ჩა_სმა"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "გა_უქმება"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "გამეო_რება"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_პარამეტრები"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_გასვლა"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_შესახებ"
 
diff --git a/po/kk.po b/po/kk.po
index 269ced1..fab5df8 100644
--- a/po/kk.po
+++ b/po/kk.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Baurzhan Muftakhidinov <[email protected]>, 2018\n"
 "Language-Team: Kazakh (https://www.transifex.com/mate/teams/13566/kk/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE калькуляторы"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Калькулятор"
 
@@ -1279,102 +1279,120 @@ msgstr "Үтірден кейін %d _санды көрсету"
 msgid "Unable to open help file"
 msgstr "Көмек ақпараты файлын ашу мүмкін емес"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Baurzhan Muftakhidinov <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Қаржылық және ғылыми режимдері бар калькулятор."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Baurzhan Muftakhidinov <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Калькулятор"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Режимі"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Көм_ек"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "Қарапа_йым"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "Кеңейтіл_ген"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "Қар_жылық"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "Бағдарл_амалау"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Құра_масы"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Көшіру"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Кірі_стіру"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Бол_дырмау"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Қай_талау"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Баптаулар"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Шығу"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "О_сы туралы"
 
diff --git a/po/km.po b/po/km.po
index af7123c..796df9c 100644
--- a/po/km.po
+++ b/po/km.po
@@ -4,7 +4,7 @@
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 # 
 # Translators:
-# Bunhann Thou <[email protected]>, 2018
+# Bunhann THOU <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # 
 #, fuzzy
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Khmer (https://www.transifex.com/mate/teams/13566/km/)\n"
@@ -527,12 +527,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "ម៉ាស៊ីនគិតលេខ MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ម៉ាស៊ីន​គិត​លេខ"
 
@@ -1322,102 +1322,120 @@ msgstr "បង្ហាញ​​ការ​ដាក់​ទសភាគ %d"
 msgid "Unable to open help file"
 msgstr "មិន​អាច​បើក​ឯកសារ​ជំនួយ​បាន​ទេ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "ខឹម សុខែម, ម៉ន ម៉េត, សេង សុត្ថា, ចាន់ សម្បត្តិរតនៈ, សុខ សុភា"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ម៉ាស៊ីន​គិតលេខ​ដែល​មាន​របៀប​វិទ្យាសាស្ត្រ និង​​របៀប​ហិរញ្ញវត្ថុ"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "ខឹម សុខែម, ម៉ន ម៉េត, សេង សុត្ថា, ចាន់ សម្បត្តិរតនៈ, សុខ សុភា"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ម៉ាស៊ីន​គិតលេខ"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "របៀប"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ជំនួយ"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "ជា​គោល"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "កម្រិត​ខ្ពស់"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "ហិរញ្ញវត្ថុ"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "ការ​សរសេរ​កម្មវិធី"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "មាតិកា"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_អំពី"
 
diff --git a/po/kn.po b/po/kn.po
index 962121d..45e10d9 100644
--- a/po/kn.po
+++ b/po/kn.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Kannada (https://www.transifex.com/mate/teams/13566/kn/)\n"
@@ -527,12 +527,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "ಮೇಟ್ ಕ್ಯಾಲ್ಕುಲೇಟರ್"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ಕ್ಯಾಲ್ಕುಲೇಟರ್"
 
@@ -1324,103 +1324,121 @@ msgstr "%d ದಶಾಂಶ ಸ್ಥಾನಗಳನ್ನು ತೋರಿಸು
 msgid "Unable to open help file"
 msgstr "ನೆರವಿನ ಕಡತವನ್ನು ತೆರೆಯಲು ಸಾಧ್ಯವಾಗಿಲ್ಲ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"ಶಂಕರ್ ಪ್ರಸಾದ್ <[email protected]>,ಕಾರ್ತಿಕ ಹೊಳ್ಳ <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ಹಣಕಾಸು ಹಾಗು ವೈಜ್ಞಾನಿಕ ಕ್ರಮಗಳನ್ನು ಹೊಂದಿರುವ ಕ್ಯಾಲ್ಕುಲೇಟರ್."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"ಶಂಕರ್ ಪ್ರಸಾದ್ <[email protected]>,ಕಾರ್ತಿಕ ಹೊಳ್ಳ <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ಕ್ಯಾಲ್ಕುಲೇಟರ್(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "ಕ್ರಮ(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ನೆರವು(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "ಸರಳ(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "ಸುಧಾರಿತ(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "ಹಣಕಾಸು(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "ಪ್ರೊಗ್ರಾಮಿಂಗ್(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "ವಿಷಯಗಳು(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "ಕಾಪಿ ಮಾಡು(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ಅಂಟಿಸು(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "ರದ್ದು ಮಾಡು(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "ಮತ್ತೊಮ್ಮೆ ಮಾಡು(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "ಆದ್ಯತೆಗಳು(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "ಹೊರನಡೆ(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "ಇದರ ಬಗ್ಗೆ(_A)"
 
diff --git a/po/ko.po b/po/ko.po
index 09982cf..cdb29bf 100644
--- a/po/ko.po
+++ b/po/ko.po
@@ -7,16 +7,17 @@
 # Seong-ho Cho <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Alan Lee <[email protected]>, 2018
-# 박정규(Jung-Kyu Park) <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# 박정규(Jung-Kyu Park) <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: 박정규(Jung-Kyu Park) <[email protected]>, 2018\n"
+"Last-Translator: 박정규(Jung-Kyu Park) <[email protected]>, 2019\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"
@@ -508,12 +509,12 @@ msgstr ""
 "사용합니다.</p> <p> 마테 계산기는 그놈 계산기의 포크이며 마테 데스크톱 환경의 일부입니다. 마테와 마테 계산기에 관해 더 알고자 "
 "하시면 , 마테 프로젝트의 홈페이지를 방문해보세요.</p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "마테 계산기 "
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "계산기"
 
@@ -1303,8 +1304,61 @@ msgstr "%d자리 십진수 표시(_P)"
 msgid "Unable to open help file"
 msgstr "도움말 파일을 열 수 없습니다"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE 문서 팀"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+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:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"MATE 계산기는 유용하게 사용될 수 있으리라는 희망에서 배포되고 있지만, 특정한 목적에 맞는 적합성 여부나 판매용으로 사용할 수 "
+"있으리라는 묵시적인 보증을 포함한 어떠한 형태의 보증도 제공하지 않습니다. 보다 자세한 사항에 대해서는 GNU 일반 공중 사용 허가서를 "
+"참고하시기 바랍니다."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"GNU 일반 공중 사용 허가서 사본을 이 프로그램과 받아야 합니다. 못받으셨다면 Free Software Foundation, Inc.,"
+" 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA에 요청하세요."
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "MATE 계산기"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "재무 및 과학 모드가 지원되는 계산기."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Elex https://launchpad.net/~mysticzizone\n"
@@ -1314,102 +1368,71 @@ msgstr ""
 "Seong-ho Cho <[email protected]>\n"
 "MATE Desktop Environment Team <https://www.transifex.com/mate/teams/13566/ko/>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"계산기는 자유 소프트웨어로 자유 소프트웨어 재단의 GNU GPL 버전 2나 그 이후 버전(사용자 선택)에 따라 재배포하고 수정할 수 "
-"있습니다. 계산기는 유용하기를 바라면서 배포되지만 \"어떠한 보증도 없습니다.\" 심지어 \"상품성이나 특정 목적에 적합성\"에 대한 "
-"묵시적 보증도 없습니다. 더 자세한 내용은 GNU GPL을 보십시오. GNU GPL 사본이 계산기꾸러미에 포함되어 있어야 합니다. 없다면"
-" 자유 소프트웨어 재단 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA 으로"
-" 알려주세요."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "계산기"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "재무 및 과학 모드가 지원되는 계산기."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "계산기(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "종류(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "도움말(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "기본(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "고급(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "재무(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "프로그래밍(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "콘텐츠(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "복사(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "붙여넣기(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "실행 취소(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "재실행(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "기본 설정(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "끝내기(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "정보(_A)"
 
diff --git a/po/ku.po b/po/ku.po
index 9025a4e..ebc99d9 100644
--- a/po/ku.po
+++ b/po/ku.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Kurdish (https://www.transifex.com/mate/teams/13566/ku/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Erdal Ronahî"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Erdal Ronahî"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Alîkarî"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Bingehîn"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Pêşketî"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Malî"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Naverok"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Ji ber bigire"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Pê veke"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Vegerîne"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Dîsa bike"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Vebijêrk"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Derkeve"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Der barê"
 
diff --git a/po/ku_IQ.po b/po/ku_IQ.po
index 8da3535..d6d0c6c 100644
--- a/po/ku_IQ.po
+++ b/po/ku_IQ.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Rasti K5 <[email protected]>, 2018\n"
 "Language-Team: Kurdish (Iraq) (https://www.transifex.com/mate/teams/13566/ku_IQ/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "ژمێرەری MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ژمێرەر"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_بژمێر"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_یارمەتی"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_سەرەتایی"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_پێشکەوتوو"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_بەرنامەسازی"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_ناوەڕۆک"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_لەبەرگرتنەوە"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_هەڵبژاردەکان"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_دەرچوون"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_دەربارە"
 
diff --git a/po/ky.po b/po/ky.po
index a133ee7..c012849 100644
--- a/po/ky.po
+++ b/po/ky.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: chingis, 2018\n"
 "Language-Team: Kyrgyz (https://www.transifex.com/mate/teams/13566/ky/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE калькулятору"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Калькулятор"
 
@@ -1276,102 +1276,120 @@ msgstr "%d ондук _разрядды көрсөтүү"
 msgid "Unable to open help file"
 msgstr "Жардам файлын ачуу оңунан чыккан жок"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Жумалиев Чыңгыз <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc калькулятору"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Жумалиев Чыңгыз <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Калькулятор"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Режим"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Жардам"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Жөнөкөй"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Кеңейтилген"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "Ка_ржы"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Программалоо"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Мазмундар"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Көчүрүү"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "К_оюу"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Жокко чыгаруу"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Кайтаруу"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Ырастоолор"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Чыгуу"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Программа _жөнүндө"
 
diff --git a/po/li.po b/po/li.po
index bb1d0d9..608e994 100644
--- a/po/li.po
+++ b/po/li.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Limburgian (https://www.transifex.com/mate/teams/13566/li/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hulp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Inhaud"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiëre"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Plakke"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Óngeda_on make"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "He_rhaole"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Beèndige"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Euver"
 
diff --git a/po/lt.po b/po/lt.po
index 69e2341..bd7d6bf 100644
--- a/po/lt.po
+++ b/po/lt.po
@@ -7,16 +7,16 @@
 # Stefano Karapetsas <[email protected]>, 2018
 # Džiugas Grėbliūnas <[email protected]>, 2018
 # brennus <[email protected]>, 2018
-# Moo, 2018
+# Moo, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Moo, 2018\n"
+"Last-Translator: Moo, 2019\n"
 "Language-Team: Lithuanian (https://www.transifex.com/mate/teams/13566/lt/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -533,12 +533,12 @@ msgstr ""
 "sužinoti apie MATE ir MATE skaičiuotuvą, prašome aplankyti mūsų projekto "
 "internetinę svetainę. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE skaičiuotuvas"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Skaičiuotuvas"
 
@@ -1334,8 +1334,52 @@ msgstr "Rodyti %d dešimtainių _pozicijų"
 msgid "Unable to open help file"
 msgstr "Nepavyko atverti žinyno failo"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE dokumentacijos komanda"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Skaičiuotuvas su finansiniais bei moksliniais priedais"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Vertėjai:\n"
@@ -1349,110 +1393,71 @@ msgstr ""
 "Gediminas Paulauskas <[email protected]>\n"
 "Moo"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc yra nemokama programa, ją galima platinti ir/arba modifikuoti\n"
-"pagal GNU General Public License reikalavimus, kuriuos paskelbė\n"
-"Free Software Foundation; naudotina licencijos versija 2, arba\n"
-"(jūsų pasirinkimu) bet kuri vėlesnė versija.\n"
-"\n"
-"mate-calc yra platinamas tikintis, jog ji bus naudinga,\n"
-"bet BE JOKIŲ GARANTIJŲ; netgi be numanomų TINKAMUMO\n"
-" PREKYBAI ar KONKREČIAM TIKSLUI garantijų. Daugiau\n"
-"smulkmenų rasite GNU General Public License.\n"
-"\n"
-"Jūs turėtumėte gauti GNU General Public License kopiją\n"
-"kartu su mate-calc; jei ne, parašykite Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Skaičiuotuvas su finansiniais bei moksliniais priedais"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Skaičiuotuvas"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Režimas"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Žinynas"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Paprastas"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Sudėtingesnis"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansinis"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programuojamasis"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Turinys"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopijuoti"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Į_dėti"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Atša_ukti"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Pakartoti"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Nustatymai"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "Iš_eiti"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Apie"
 
diff --git a/po/lv.po b/po/lv.po
index 04ae088..47ce8e2 100644
--- a/po/lv.po
+++ b/po/lv.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: ciba43 <[email protected]>, 2018\n"
 "Language-Team: Latvian (https://www.transifex.com/mate/teams/13566/lv/)\n"
@@ -526,12 +526,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Kalkulators"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulators"
 
@@ -1325,116 +1325,122 @@ msgstr "Rādīt %d ci_parus aiz komata"
 msgid "Unable to open help file"
 msgstr "Nevar atvērt palīdzības datni"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Kristaps https://launchpad.net/~retail"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc ir brīvā programatūra; jūs varat brīvi izplatīt tp un/vai modificēt\n"
-"to zem GNU Vispārējās Publiskās Licences, kā publicēja Brīvās \n"
-"Programatūras Fonds; vai licences versija 2, vai (pēc jūsu viedokļa)\n"
-"jebkura vēlāka.\n"
-"\n"
-"mate-calc tiek izplatīta ar cerību, ka būs noderīga, bet BEZ JEBKĀDĀM\n"
-"GARANTIJĀM; pat bez PĀRDOŠANAS un PIELIETOJUMA DERĪGUMA garantijām.\n"
-"Apskatiet GNU Vispārējo Publisko detaļu, lai iegūtu vairāk informāciju.\n"
-"\n"
-"Jums vajadzēja saņemt GNU Vispārējās Publiskās Licenci kopā ar mate-calc;\n"
-"ja ne, tad rakstiet uz the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Kalkulators ar finansiālo un zinātnisko režīmu."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Kristaps https://launchpad.net/~retail"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulators"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Režīms"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Palīdzība"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Vienkāršais"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "P_aplašinātais"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansiālais"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmēšanas"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Saturs"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopēt"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Izlikt"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Atsaukt"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Pāratsaukt"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Iestatījumi"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Iziet"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "P_ar"
 
diff --git a/po/mai.po b/po/mai.po
index cca738a..eab4092 100644
--- a/po/mai.po
+++ b/po/mai.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Maithili (https://www.transifex.com/mate/teams/13566/mai/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "कैलकुलेटर"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "संगीता कुमारी ([email protected])"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "वित्तीय आओर वैज्ञानिक मोड बला कैलकुलेटर"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "संगीता कुमारी ([email protected])"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "कैलकुलेटर (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "मद्दति (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "मौलिक (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "उन्नत (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "वित्तीय (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "विषय सूची (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "कॉपी करू (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "साटू (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "पूर्ववत् करू (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "दोहराबू (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "वरीयतासभ (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "बाहर (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "क' संबंधमे (_A)"
 
diff --git a/po/mg.po b/po/mg.po
index 10b7148..92484a7 100644
--- a/po/mg.po
+++ b/po/mg.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Malagasy (https://www.transifex.com/mate/teams/13566/mg/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Milina mpikajy"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Fankasitrahana ny mpandika teny"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Milina mpikajy misy fikajiana ara-bola sy siantifika."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Fankasitrahana ny mpandika teny"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Milina mpikajy"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Toro-làlana"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Fototra"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avo lenta"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Ara-bola"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Mpiaty"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Adikao"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Apetao"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Foano"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Avereno"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Safidy manokana"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Ajanony"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Mombamomba"
 
diff --git a/po/mi.po b/po/mi.po
index 640860c..d9d6ea7 100644
--- a/po/mi.po
+++ b/po/mi.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Maori (https://www.transifex.com/mate/teams/13566/mi/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Āwhina"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Ngā kai"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Tārua"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Whakapiri"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Whakakore"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Mahi Anō"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Whakamutu"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Mo"
 
diff --git a/po/mk.po b/po/mk.po
index f4f8adf..b61bc8b 100644
--- a/po/mk.po
+++ b/po/mk.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Macedonian (https://www.transifex.com/mate/teams/13566/mk/)\n"
@@ -520,12 +520,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Калкулатор"
 
@@ -1317,102 +1317,120 @@ msgstr "Покажи %d децимални _места"
 msgid "Unable to open help file"
 msgstr "Не можев да ја отворам датотеката со помош"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Арангел Ангов <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Алатка mate-calc"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Калкулатор со финансиски и научен режим на работа."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Арангел Ангов <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Калкулатор"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Режим"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Помош"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Основен"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Напреден"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Финансиски"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Програмирање"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Содржина"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Копирај"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Вметни"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Врати"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Повтори"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Параметри"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "Излез"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_За"
 
diff --git a/po/ml.po b/po/ml.po
index f1de125..437963e 100644
--- a/po/ml.po
+++ b/po/ml.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Malayalam (https://www.transifex.com/mate/teams/13566/ml/)\n"
@@ -525,12 +525,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ഗണനി"
 
@@ -1326,104 +1326,122 @@ msgstr "%d_ദശാംശ സ്ഥാനങ്ങള്‍ കാണിക്�
 msgid "Unable to open help file"
 msgstr "സഹായ ഫയല്‍ തുറക്കാന്‍ കഴിയുന്നില്ല"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"അനി പീറ്റര്‍ <[email protected]>\n"
-"പ്രവീണ്‍ അരിമ്പ്രത്തൊടിയില്‍ <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:249
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ഫിനാന്‍ഷ്യലും ശാസ്ത്രീയ ദശകളുമുള്ള കാല്‍ക്കുലേറ്റര്‍"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"അനി പീറ്റര്‍ <[email protected]>\n"
+"പ്രവീണ്‍ അരിമ്പ്രത്തൊടിയില്‍ <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_ഗണനി"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_സഹായം"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_അടിസ്ഥാനമായ"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_സങ്കീര്‍ണ്ണമായ"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_ധനകാര്യം"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_പ്രോഗ്രാമിങ്"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_ഉളളടക്കം"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "പകര്‍ത്തുക (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ഒട്ടിയ്ക്കുക"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "വേണ്ട"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "വീണ്ടും"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "മുന്‍ഗണനകള്‍"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "പുറത്ത് കടക്കുക (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_സംബന്ധിച്ച്"
 
diff --git a/po/mn.po b/po/mn.po
index bafce4b..018f336 100644
--- a/po/mn.po
+++ b/po/mn.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Mongolian (https://www.transifex.com/mate/teams/13566/mn/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Тооны машин"
 
@@ -1279,104 +1279,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Сүхбаатарын Дөлмандах <[email protected]> \n"
-"Санлигийн Бадрал 2004, <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Гкалктүүл"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Санхүүгийн болон шинжлэх ухааны горимуудтай тооны машин."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Сүхбаатарын Дөлмандах <[email protected]> \n"
+"Санлигийн Бадрал 2004, <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Тусламж"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Агуулагдхуун"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Хуулах"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Буулгах"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Цуцлах"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Сэргээх"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Тохиргоо"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "/Файл/_Гарах"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Тухай"
 
diff --git a/po/mr.po b/po/mr.po
index 46cc9cd..65050cc 100644
--- a/po/mr.po
+++ b/po/mr.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Marathi (https://www.transifex.com/mate/teams/13566/mr/)\n"
@@ -527,12 +527,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "मेट गणनयंत्र"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "गणनयंत्र"
 
@@ -1324,115 +1324,120 @@ msgstr "%d डेसिमल ठिकाण दाखवा (_p)"
 msgid "Unable to open help file"
 msgstr "मदत फाइल उघडण्यास अपयशी"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "भाषांतराचे श्रेय Vaibhav Dalvi<[email protected]> 2014"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "वित्तीय व शास्त्रीय पध्दतीचे गणनयंत्र."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "भाषांतराचे श्रेय Vaibhav Dalvi<[email protected]> 2014"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "गणनयंत्र (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "मोड (_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "मदत(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "मुलभूत (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "प्रगत (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "वित्तिय (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "प्रोग्रामींग (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "विषयसूची (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "प्रत बनवा (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "चिकटवा (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "बदल रद्द करा(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "पुन्हा करा (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "प्राधान्यता (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "बाहेर पडा (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "विषयी (_A)"
 
diff --git a/po/ms.po b/po/ms.po
index 8dc4887..f763857 100644
--- a/po/ms.po
+++ b/po/ms.po
@@ -6,16 +6,16 @@
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
 # Puretech <[email protected]>, 2018
-# abuyop <[email protected]>, 2018
+# abuyop <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: abuyop <[email protected]>, 2018\n"
+"Last-Translator: abuyop <[email protected]>, 2019\n"
 "Language-Team: Malay (https://www.transifex.com/mate/teams/13566/ms/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -533,12 +533,12 @@ msgstr ""
 "Persekitaran Desktop MATE Desktop. Jika anda mahu ketahui lebih lanjut "
 "mengenai MATE dan MATE Calc, sila lawati laman sesawang projek. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Kalkulator MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1328,115 +1328,133 @@ msgstr "Papar %d tempat _perpuluhan"
 msgid "Unable to open help file"
 msgstr "Tidak boleh buka fail bantuan"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Abuyop"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Pasukan Dokumentasi MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"Kalkulator MATE merupakan perisian bebas; anda boleh mengedarkannya dan/atau"
+" mengubahsuainya dibawah terma GNU General Public License sebagaimana yang "
+"telah dikeluarkan oleh Free Software Foundation; sama ada versi ke-2 lesen, "
+"atau (mengikut pilihan anda) sebarang versi terkemudian."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"Kalkulator MATE diedarkan dengan harapan ianya berguna tetapi TANPA SEBARANG"
+" JAMINAN; tanpa sebarang implakasi jaminan KEBOLEHDAGANGAN atau KESESUAIAN "
+"UNTUK SESUATU TUJUAN. Sila rujuk GNU General Public LIcense untuk keterangan"
+" lanjut."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Anda seharusnya menerima salinan Lesen Awam Am GNU bersama-sama Kalkulator "
+"MATE; jika tiada, laporkan ke Free Software Foundation, Inc., 51 Franklin "
+"Street, Fifth Floor, Boston, MA 02110-1301, USA"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "Perihal Kalkulator MATE"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc adalah perisian bebas; anda boleh mengedarkannya dan/atau \n"
-"mengubahsuainya dibawah terma Pelesenan Awam Am GNU yang \n"
-"diterbitkan oleh Free Software Foundation; sama ada versi 2 lesen, atau\n"
-"(mengikut pilihan anda) sebarang versi terkini.\n"
-"\n"
-"mate-calc ini diedarkan dengan harapan ianya akan berguna,\n"
-"TANPA SEBARANG JAMINAN; termasuk juga KESESUAIAN UNTUK \n"
-"DIPASARKAN, JAMINAN KUALITI, atau JAMINAN ATAS APA JUA SEBAB.\n"
-"Sila lihat GNU General Public License untuk maklumat lanjut.\n"
-"\n"
-"Anda seharusnya menerima satu salinan Lesen Awam Am GNU\n"
-"bersama-sama dengan mate-calc; jika tidak, laporkannya ke Free SoftwareFoundation, Inc.,\n"
-"51 Franklin Street - Fifth Floor, Boston, MA 02111-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Hakcipta © 1986–2010 Pengarang GCalctool\n"
+"Hakcipta © 2011-2019 Pembangun MATE"
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Kalkulator dengan mod kewangan dan saintifik."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Abuyop"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mod"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Bantuan"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Asas"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Lanjutan"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Kewangan"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Pengaturcaraan"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Kandungan"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Salin"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Tampal"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "B_uat asal"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Buat semu_la"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Keutamaan"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Keluar"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Perih_al"
 
diff --git a/po/my.po b/po/my.po
index 27fe09f..431b6d5 100644
--- a/po/my.po
+++ b/po/my.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Burmese (https://www.transifex.com/mate/teams/13566/my/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ဂဏန်းတွက်စက်"
 
@@ -1276,103 +1276,121 @@ msgstr "_P ဒသမနောက်မှ %d  နေရာပြပါ"
 msgid "Unable to open help file"
 msgstr "အကူအညီဖိုင်ကိုဖွင့်၍မရနှိုင်ပါ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 "ငွေကြေးဆိုင်ရာနှင့်သိပ္ပံနည်းပညာနယ်ပယ်တွင်အသုံးပြုနှိူင်သောဂဏန်းတွက်စက်"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_C ဂဏန်းတွက်စက်"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_M သုံမည့်ပုံစံ"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_H အကူအညီ"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_B အခြေခံသုံး"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_A အဆင့်မြင့်သုံး"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_F ငွေကြေးဆိုင်ရာသုံး"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_P ပရိုဂရမ်မာသုံး"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_C မာတိကာ"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr ""
 
diff --git a/po/nb.po b/po/nb.po
index 57f8405..f00f9bc 100644
--- a/po/nb.po
+++ b/po/nb.po
@@ -8,15 +8,16 @@
 # Kenneth Jenssen <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Allan Nordhøy <[email protected]>, 2018
+# Imre Kristoffer Eilertsen <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Allan Nordhøy <[email protected]>, 2018\n"
+"Last-Translator: Imre Kristoffer Eilertsen <[email protected]>, 2019\n"
 "Language-Team: Norwegian Bokmål (https://www.transifex.com/mate/teams/13566/nb/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -535,12 +536,12 @@ msgstr ""
 "GNOME-kalkulatoren og en del av MATE skrivebordsmiljø. Hvis du vil vite mer "
 "om MATE og MATE-kalkulator, besøk prosjektets hjemmeside.</p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE-kalkulator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1334,8 +1335,52 @@ msgstr "Vis %d desimal_plasser"
 msgid "Unable to open help file"
 msgstr "Kan ikke åpne hjelpfil"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulator med finans- og vitenskapelig modus."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Send en e-post om du finner feil eller mangler i oversettelsen.\n"
@@ -1349,111 +1394,71 @@ msgstr ""
 "\n"
 "Av totalt 11597 tekststrenger."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc er fri programvare. Du kan dele og/eller endre det\n"
-"under de betingelsene angitt i GNU General Public License,\n"
-"utgitt av Free Software Foundation. Enten version 2 av lisensen\n"
-"eller (etter eget valg) enhver senere versjon.\n"
-"\n"
-"\n"
-"mate-calc distribueres i håp om, at det vil vise seg å være nyttig, men UTEN NOEN \n"
-"FORM FOR GARANTI, uten selv underforståtte garantier omkring \n"
-"SALGBARHET eller EGNETHET TIL ET BESTEMT FORMÅL. Yderligere detaljer står det å lese om i\n"
-"GNU General Public License.\n"
-"\n"
-"Du skal ha mottatt en kopi av GNU General Public License sammen med\n"
-"mate-calc. Hvis ikke, skriv til Free software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulator med finans- og vitenskapelig modus."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Lommeregner"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modus"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hjelp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Grunnleggende"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avansert"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansiell"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Innhold"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopier"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Lim inn"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "A_ngre"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Gjenta"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Innstillinger"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Avslutt"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Om"
 
diff --git a/po/nds.po b/po/nds.po
index b905eb4..ba130fe 100644
--- a/po/nds.po
+++ b/po/nds.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Benedikt Straub <[email protected]>, 2019\n"
 "Language-Team: Low German (https://www.transifex.com/mate/teams/13566/nds/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1279,105 +1279,123 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Skullmaster https://launchpad.net/~koeritz-jonas\n"
-"  Valmantas Palikša https://launchpad.net/~walmis"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Skullmaster https://launchpad.net/~koeritz-jonas\n"
+"  Valmantas Palikša https://launchpad.net/~walmis"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hölp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Inholls"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Koperen"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Infögen"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Torüggnehmen"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Wedderholen"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Eegenschapten"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Sluten"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Över"
 
@@ -2168,7 +2186,7 @@ msgstr ""
 #: ../src/unit-manager.c:99
 msgctxt "unit-symbols"
 msgid "K"
-msgstr ""
+msgstr "K"
 
 #: ../src/unit-manager.c:100
 msgid "Rankine"
diff --git a/po/ne.po b/po/ne.po
index 43708dc..27746f3 100644
--- a/po/ne.po
+++ b/po/ne.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: chautari <[email protected]>, 2018\n"
 "Language-Team: Nepali (https://www.transifex.com/mate/teams/13566/ne/)\n"
@@ -499,12 +499,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "गणकयन्त्र"
 
@@ -1280,104 +1280,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"pawan chitrakar <[email protected]>,Narayan Kumar Magar "
-"<[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "जीक्याल्कटूल"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "आर्थिक र वैज्ञानिक मोडहरू भएको गणकयन्त्र"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"pawan chitrakar <[email protected]>,Narayan Kumar Magar "
+"<[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "गणकयन्त्र"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "मद्दत"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "आधारभूत"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "उन्नत"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "आर्थिक"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "सामग्री"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "प्रतिलिपि गर्नुहोस्"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "टाँस्नुहोस्"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "पूर्वस्थितिमा फर्काउनुहोस्"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "रिडू गर्नुहोस्"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "प्राथमिकता"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "अन्त्य गर्नुहोस्"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "बारेमा"
 
diff --git a/po/nl.po b/po/nl.po
index 75ea8e1..be704f9 100644
--- a/po/nl.po
+++ b/po/nl.po
@@ -5,23 +5,23 @@
 # 
 # Translators:
 # Erik Bent <[email protected]>, 2018
-# dragnadh <[email protected]>, 2018
+# dragnadh, 2018
 # Nathan Follens, 2018
 # René Devers <[email protected]>, 2018
 # Kees Lijkendijk <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
-# Pjotr <[email protected]>, 2018
 # Michael Steenbeek <[email protected]>, 2018
 # infirit <[email protected]>, 2018
+# Pjotr <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: infirit <[email protected]>, 2018\n"
+"Last-Translator: Pjotr <[email protected]>, 2019\n"
 "Language-Team: Dutch (https://www.transifex.com/mate/teams/13566/nl/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -541,12 +541,12 @@ msgstr ""
 "deel van de MATE-werkomgeving. Als u meer wilt weten over MATE en MATE "
 "Rekenmachine, dan kunt u terecht op de startpagina van het project.</p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Rekenmachine"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Rekenmachine"
 
@@ -1338,8 +1338,66 @@ msgstr "Toon %d decimale _posities"
 msgid "Unable to open help file"
 msgstr "Kan hulpbestand niet openen"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Documentatieploeg van MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"MATE Rekenmachine is vrije programmatuur; u kunt hem herverdelen en/of "
+"wijzigen onder de voorwaarden van de GNU General Public License zoals "
+"gepubliceerd door de Free Software Foundation; hetzij versie 2 van die "
+"licentie, of (naar uw eigen keuze) enige nieuwere versie."
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"MATE Rekenmachine wordt beschikbaar gesteld in de hoop dat hij nuttig zal "
+"zijn, maar ZONDER ENIGE GARANTIE; zelfs zonder de impliciete garantie van "
+"verkoopbaarheid of geschiktheid voor een bepaald doel. Zie de GNU General "
+"Public License voor meer bijzonderheden."
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"U zou een exemplaar van de GNU General Public License moeten hebben "
+"ontvangen samen met MATE Rekenmachine; indien niet, schrijf dan naar de Free"
+" Software Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA "
+"02110-1301 Verenigde Staten van Amerika."
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "Over MATE Rekenmachine"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Auteursrecht © 1986–2010 De makers van GCalctool\n"
+"Auteursrecht © 2011-2019 MATE-ontwikkelaars"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Rekenmachine met financiële en wetenschappelijke standen."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Launchpad-bijdragers:\n"
@@ -1354,111 +1412,71 @@ msgstr ""
 "Andere bijdragers:\n"
 "Pjotr"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc is vrije software, u mag het verspreiden en/of wijzigen\n"
-"onder de bepalingen van de  door de Free Software Foundation\n"
-"gepubliceerde GNU General Public License, versie 2, of (indien\n"
-"gewenst) een latere versie.\n"
-"\n"
-"mate-calc wordt verspreid met de hoop dat het nuttig zal zijn, maar\n"
-"ZONDER ENIGE GARANTIE; zelfs zonder de impliciete garantie van\n"
-"VERKOOPBAARHEID of GESCHIKTHEID VOOR ENIG DOEL. U kunt de\n"
-"GNU General Public License raadplegen voor meer details.\n"
-"\n"
-"U zou een kopie van de GNU General Public License moeten hebben\n"
-"ontvangen bij mate-calc; zo niet, schrijf dan naar de Free Software\n"
-"Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Rekenmachine met financiële en wetenschappelijke standen."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Rekenmachine "
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modus"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hulp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Eenvoudig"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "Ge_avanceerd"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financieel"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmeren"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "In_houd"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiëren"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Plakken"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Ongedaan maken"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Opnieuw uitvoeren"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Voorkeuren"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "A_fsluiten"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Info"
 
diff --git a/po/nn.po b/po/nn.po
index 04511cd..78916f1 100644
--- a/po/nn.po
+++ b/po/nn.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Øystein Steffensen-Alværvik <[email protected]>, 2018\n"
 "Language-Team: Norwegian Nynorsk (https://www.transifex.com/mate/teams/13566/nn/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1286,104 +1286,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "Klarte ikkje å opna hjelpefila"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Åsmund Skjæveland <[email protected]>\n"
-"Eskild Hustvedt <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Kalkulator med finans- og vitskapleg modus."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Åsmund Skjæveland <[email protected]>\n"
+"Eskild Hustvedt <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hjelp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Grunnleggjande"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avansert"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansiell"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Innhald"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopier"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Lim inn"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Angre"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Gje_r om"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Innstillingar"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Avslutt"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Om"
 
diff --git a/po/nso.po b/po/nso.po
index 6397e65..dc712f4 100644
--- a/po/nso.po
+++ b/po/nso.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Northern Sotho (https://www.transifex.com/mate/teams/13566/nso/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,104 +1278,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Translate.org.za <[email protected]>\n"
-"Pheledi Mathibela <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Translate.org.za <[email protected]>\n"
+"Pheledi Mathibela <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Thušo"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Dikagare"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiša"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Kgomaretša"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Dirolla"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Dira gape"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Tše ratwago"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Tlogela"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Ka ga"
 
diff --git a/po/oc.po b/po/oc.po
index 5ee5f26..5ac388f 100644
--- a/po/oc.po
+++ b/po/oc.po
@@ -8,15 +8,16 @@
 # Tot en òc <[email protected]>, 2018
 # Cfpo Miègjorn-Pirenèus <[email protected]>, 2018
 # Cédric Valmary <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Cédric Valmary <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Occitan (post 1500) (https://www.transifex.com/mate/teams/13566/oc/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -530,12 +531,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadoira"
 
@@ -1311,104 +1312,122 @@ msgstr "Afichar %d de_cimalas"
 msgid "Unable to open help file"
 msgstr "Impossible de dobrir lo fichièr d'ajuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Yannig Marchegay (Kokoyaya) <[email protected]> & Cédric Valmary "
-"(totenoc.eu) <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculadoira amb de mòdes financièrs e scientifics."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Yannig Marchegay (Kokoyaya) <[email protected]> & Cédric Valmary "
+"(totenoc.eu) <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "Calc_uladoira"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Aju_da"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Basic"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avançat"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financièr"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Ensenhador"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Pegar"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Anullar"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Tornar far"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferéncias"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Quitar"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "A _prepaus"
 
diff --git a/po/or.po b/po/or.po
index d6f63ec..6a6761f 100644
--- a/po/or.po
+++ b/po/or.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Oriya (https://www.transifex.com/mate/teams/13566/or/)\n"
@@ -521,12 +521,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "କାଲକୁଲେଟର"
 
@@ -1316,102 +1316,120 @@ msgstr "%d ଦଶମିକ ସ୍ଥାନଗୁଡିକୁ ଦର୍ଶାନ�
 msgid "Unable to open help file"
 msgstr "ସହାୟତା ଫାଇଲ ଖୋଲିବାରେ ଅସମର୍ଥ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "ଶୁଭ୍ରାଂଶୁ ବେହେରା <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ଆର୍ଥିକ ଓ ବୈଜ୍ଞାନିକ ଧାରା ସହିତ କାଲ୍କୁଲେଟର."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "ଶୁଭ୍ରାଂଶୁ ବେହେରା <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "କାଲ୍କୁଲେଟର (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "ଧାରା (_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ସହାୟତା (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "ମୌଳିକ (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "ଉନ୍ନତ (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "ଆର୍ଥିକ (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "କାର୍ଯ୍ୟକ୍ରମ (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "ସୂଚୀପତ୍ର (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "ନକଲ କରନ୍ତୁ (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ଲଗାନ୍ତୁ (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "ପ୍ରତିକାର କରନ୍ତୁ (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "ପୁନର୍ବାର କରନ୍ତୁ (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "ପସନ୍ଦ (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "ବିଦାୟ ନିଅନ୍ତୁ (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "ବିବରଣୀ (_A)"
 
diff --git a/po/pa.po b/po/pa.po
index d4f67c6..0f38c9a 100644
--- a/po/pa.po
+++ b/po/pa.po
@@ -5,15 +5,16 @@
 # 
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Panjabi (Punjabi) (https://www.transifex.com/mate/teams/13566/pa/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -522,12 +523,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ਕੈਲਕੂਲੇਟਰ"
 
@@ -1319,106 +1320,124 @@ msgstr "%d ਦਸ਼ਮਲਵ ਅੰਕਾਂ ਤੱਕ ਵੇਖੋ(_p)"
 msgid "Unable to open help file"
 msgstr "ਮੱਦਦ ਫਾਇਲ ਖੋਲ੍ਹਣ ਲਈ ਅਸਮਰੱਥ"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "ਸਨ ਮਾਈਕਰੋਸਿਸਟਮ"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"ਜਸਵਿੰਦਰ ਸਿੰਘ ਫੂਲੇਵਾਲਾ ੨੦੦੪\n"
-"ਅਮਨਪਰੀਤ ਸਿੰਘ ਆਲਮਵਾਲਾ ੨੦੦੪-੨੦੧੦\n"
-"ਪੰਜਾਬੀ ਓਪਨ ਸੋਰਸ ਟੀਮ (POST)\n"
-"http://www.satluj.com"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:249
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "ਜੀ-ਕੈਲਕੁਲੇਟਰ"
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ਆਰਥਿਕ ਅਤੇ ਵਿਗਿਆਨਿਕ ਢੰਗਾਂ ਵਾਲਾ ਕੈਲਕੂਲੇਟਰ ਹੈ।"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"ਜਸਵਿੰਦਰ ਸਿੰਘ ਫੂਲੇਵਾਲਾ ੨੦੦੪\n"
+"ਅਮਨਪਰੀਤ ਸਿੰਘ ਆਲਮਵਾਲਾ ੨੦੦੪-੨੦੧੦\n"
+"ਪੰਜਾਬੀ ਓਪਨ ਸੋਰਸ ਟੀਮ (POST)\n"
+"http://www.satluj.com"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ਕੈਲਕੂਲੇਟਰ(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "ਮੋਡ(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ਮੱਦਦ(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "ਮੁੱਢਲਾ(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "ਤਕਨੀਕੀ(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "ਵਿੱਤੀ(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "ਪਰੋਗਾਰਮਿੰਗ(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "ਸਮੱਗਰੀ(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "ਕਾਪੀ ਕਰੋ(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "ਚੇਪੋ(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "ਵਾਪਿਸ(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "ਪਰਤਾਉ(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "ਮੇਰੀ ਪਸੰਦ(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "ਬਾਹਰ(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "ਇਸ ਬਾਰੇ(_A)"
 
diff --git a/po/pl.po b/po/pl.po
index 0694f5e..cc29deb 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -9,18 +9,19 @@
 # Marcin Kralka <[email protected]>, 2018
 # Krzysztof Kokot <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
-# pietrasagh <[email protected]>, 2018
-# Piotr Drąg <[email protected]>, 2018
 # Przemek P <[email protected]>, 2018
+# Piotr Drąg <[email protected]>, 2018
+# Marcin GTriderXC <[email protected]>, 2019
+# Piotr Kowalik <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Przemek P <[email protected]>, 2018\n"
+"Last-Translator: Piotr Kowalik <[email protected]>, 2019\n"
 "Language-Team: Polish (https://www.transifex.com/mate/teams/13566/pl/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -535,12 +536,12 @@ msgstr ""
 " środowiska MATE Desktop. Jeśli chcesz dowiedzieć się więcej o MATE i MATE "
 "Calc, odwiedź stronę główną projektu. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Kalkulator MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1336,8 +1337,67 @@ msgstr "Wyświetlanie %d _miejsc po przecinku"
 msgid "Unable to open help file"
 msgstr "Nie można otworzyć pliku pomocy"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE Documentation Team"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"Kalkulator MATE jest wolnym oprogramowaniem; można go rozprowadzać dalej "
+"i/lub modyfikować na warunkach Powszechnej Licencji Publicznej GNU, wydanej "
+"przez Fundację Wolnego Oprogramowania - według wersji drugiej tej Licencji "
+"lub którejś z późniejszych wersji. "
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+"Kalkulator MATE rozpowszechniany jest z nadzieją, iż będzie on użyteczny - "
+"jednak BEZ JAKIEJKOLWIEK GWARANCJI, nawet domyślnej gwarancji PRZYDATNOŚCI "
+"HANDLOWEJ albo PRZYDATNOŚCI DO OKREŚLONYCH ZASTOSOWAŃ. W celu uzyskania "
+"bliższych informacji należy zapoznać się z Powszechną Licencją Publiczną "
+"GNU. "
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+"Z pewnością wraz z Kalkulatorem MATE dostarczono także egzemplarz "
+"Powszechnej Licencji Publicznej GNU (GNU General Public License); jeśli nie "
+"- proszę napisać do Free Software Foundation, Inc., 51 Franklin Street, "
+"Fifth Floor, Boston, MA 02110-1301 USA"
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "O Kalkulatorze MATE"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Prawa autorskie © 1986–2010 The GCalctool authors\n"
+"Prawa autorskie © 2011-2019 Deweloperzy MATE"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Kalkulator z trybem finansowym i naukowym."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Tłumacze środowiska MATE, 2014-2018\n"
@@ -1350,102 +1410,71 @@ msgstr ""
 "Piotr Drąg, 2010\n"
 "Aviary.pl, 2007-2010"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"Kalkulator MATE jest wolnym oprogramowaniem; można go rozprowadzać dalej i/lub modyfikować na warunkach Powszechnej Licencji Publicznej GNU, wydanej przez Fundację Wolnego Oprogramowania - według wersji drugiej tej Licencji lub którejś z późniejszych wersji. \n"
-"\n"
-"Kalkulator MATE rozpowszechniany jest z nadzieją, iż będzie on użyteczny - jednak BEZ JAKIEJKOLWIEK GWARANCJI, nawet domyślnej gwarancji PRZYDATNOŚCI HANDLOWEJ albo PRZYDATNOŚCI DO OKREŚLONYCH ZASTOSOWAŃ. W celu uzyskania bliższych informacji należy zapoznać się z Powszechną Licencją Publiczną GNU. \n"
-"\n"
-"Z pewnością wraz z kalkulatorem MATE dostarczono także egzemplarz Powszechnej Licencji Publicznej GNU (GNU General Public License); jeśli nie - proszę napisać do Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Kalkulator z trybem finansowym i naukowym."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Tryb"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "P_omoc"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Podstawowy"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Zaawansowany"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansowy"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "P_rogramowanie"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Spis treści"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "S_kopiuj"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Wk_lej"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Cofnij"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ponów"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "P_referencje"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Zakończ"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_O programie"
 
diff --git a/po/pms.po b/po/pms.po
index ab73938..0ddc166 100644
--- a/po/pms.po
+++ b/po/pms.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Randy Ichinose <[email protected]>, 2018\n"
 "Language-Team: Piemontese (https://www.transifex.com/mate/teams/13566/pms/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calcolatris"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Agiut"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copia"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Seurte"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Al rësgard"
 
diff --git a/po/ps.po b/po/ps.po
index d95b39f..78df163 100644
--- a/po/ps.po
+++ b/po/ps.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Pushto (https://www.transifex.com/mate/teams/13566/ps/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,104 +1278,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Saif Khan <[email protected]>Pathanisation project "
-"<[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Saif Khan <[email protected]>Pathanisation project "
+"<[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "مرسته_"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "منځپانګې_"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "لمېسل_"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "سرېښل_"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "ناکړ_"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "بياکړ_"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "غوراوي_"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "بندول_"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "په اړه_"
 
diff --git a/po/pt.po b/po/pt.po
index a9414a5..04dd88b 100644
--- a/po/pt.po
+++ b/po/pt.po
@@ -9,20 +9,21 @@
 # alfalb_mansil, 2018
 # ogalho Carlos Dias Martins <[email protected]>, 2018
 # Luis Filipe Teixeira <[email protected]>, 2018
-# MS <[email protected]>, 2018
+# Manuela Silva <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Carlos Moreira, 2018
 # José Vieira <[email protected]>, 2018
-# Rui <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# Rui <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Rui <[email protected]>, 2018\n"
+"Last-Translator: Rui <[email protected]>, 2019\n"
 "Language-Team: Portuguese (https://www.transifex.com/mate/teams/13566/pt/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -539,12 +540,12 @@ msgstr ""
 "ramificação do GNOME Calc e é parte do Ambiente de Trabalho MATE. Para saber"
 " mais sobre o MATE e o MATE Calc, viste a página do projeto. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1336,115 +1337,120 @@ msgstr "Mostrar %d _casas decimais"
 msgid "Unable to open help file"
 msgstr "Incapaz de abrir o ficheiro de ajuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "créditos de tradução"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Equipa de Documentação do MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc é uma aplicação grátis; pode redisribuí-la e/ou alterá-la sob os\n"
-"termos da Licença Pública Geral GNU, tal como publicada pela Free Software\n"
-"Foundation; ou a versão 2 da Licença, ou (à sua discrição) qualquer versão\n"
-"posterior.\n"
-"\n"
-"mate-calc é distribuída na expetativa de que será útil, mas SEM QUALQUER\n"
-"GARANTIA; nem mesmo a garantia implícita de COMERCIABILIDADE ou ADEQUAÇÃO A\n"
-"UM PROPÓSITO ESPECÍFICO.  Consulte a Licença Pública Genérica GNU para mais\n"
-"informações.\n"
-"\n"
-"Deverá ter recebido uma cópia da Licença Pública Genérica GNU juntamente\n"
-"com o mate-calc; caso contrário, escreva para Free Software Foundation,\n"
-"Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculadora com modos financeiro e científico."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "créditos de tradução"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modo"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "A_juda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Básico"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avançado"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financeiro"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programação"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Conteúdo"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Co_lar"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "An_ular"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refazer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferências"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Sair"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Sobre"
 
diff --git a/po/pt_BR.po b/po/pt_BR.po
index 6aa5556..4c1e080 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -15,15 +15,17 @@
 # Halan Germano Bacca <[email protected]>, 2018
 # Marcelo Ghelman <[email protected]>, 2018
 # Samuel Henrique <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# b36c7cf4cf669a51ae00d04c19629819, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Samuel Henrique <[email protected]>, 2018\n"
+"Last-Translator: b36c7cf4cf669a51ae00d04c19629819, 2019\n"
 "Language-Team: Portuguese (Brazil) (https://www.transifex.com/mate/teams/13566/pt_BR/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -541,12 +543,12 @@ msgstr ""
 "fork do GNOME Calc e parte do MATE Desktop Environment. Se você quiser saber"
 " mais sobre MATE e MATE Calc, visite a home page do projeto. </ P>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculadora do MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculadora"
 
@@ -1338,8 +1340,52 @@ msgstr "Mostrar %d _casas decimais"
 msgid "Unable to open help file"
 msgstr "Não foi possível abrir arquivo de ajuda"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Equipe de Documentação do MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Calculadora com modos financeiro e científico."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Equipe de tradução no Transifex:\n"
@@ -1364,101 +1410,71 @@ msgstr ""
 "Thiago Cangussu https://www.transifex.com/accounts/profile/cangussu.thg\n"
 "vitorgatti https://www.transifex.com/accounts/profile/vitorgatti"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc é um  Software Livre; Você pode modificá-lo ou redistribuí-lo⏎ \n"
-"nos termos na Licença  Geral Pública GNU, como publicada pela⏎ Fundação do Software Livre; seja pela  versão 2 da Licença,⏎ ou (se for conveniente) por qualquer versão posterior.⏎ ⏎ mate-calc é distribuído como está e pode ser útil,⏎ mas SEM NENHUMA GARANTIA, Inclusive no que se refira⏎  à VIABILIDADE COMERCIAL OU ADEQUAÇÃO A QUAISQUER PROPÓSITOS PARTICULARES. Para mais detalhes, veja a⏎ Licença Geral Pública GNU.⏎ ⏎\n"
-"Você deve ter recebido uma cópia da Licença  Geral Pública GNU, ⏎ junto com o mate-calc; Senão, escreva para a Free Software Foundation, Inc.,⏎\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Calculadora com modos financeiro e científico."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculadora"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modo"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ajuda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Básica"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avançada"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financeira"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programável"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "S_umário"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiar"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "C_olar"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Desfa_zer"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refazer"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferências"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Sair"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Sobre"
 
diff --git a/po/ro.po b/po/ro.po
index 3cf5fcd..71dbb1b 100644
--- a/po/ro.po
+++ b/po/ro.po
@@ -16,7 +16,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Daniel <[email protected]>, 2018\n"
 "Language-Team: Romanian (https://www.transifex.com/mate/teams/13566/ro/)\n"
@@ -539,12 +539,12 @@ msgstr ""
 "să aflați mai multe despre MATE și MATE Calc, vizitați pagina principală a "
 "proiectului. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Calculator MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Calculator"
 
@@ -1338,116 +1338,120 @@ msgstr "Arată %d cifre du_pă virgulă"
 msgid "Unable to open help file"
 msgstr "Nu s-a putut deschide fișierul de ajutor"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Daniel Alămiță <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-" mate-calc este un program liber; poate fi redistribuit și/sau modificat\n"
-" în conformitate cu termenii Licenței Publice Generale GNU așa cum este ea publicată de \n"
-"Fundația pentru Software Liber; fie versiunea a 2-a a Lecenței, \n"
-"sau (după cum vei alege) orice versiune ulterioară. \n"
-"\n"
-"Mate-calc este distribuit cu speranța că va fi folositor,\n"
-"dar FĂRĂ NICI O GARANȚIE; chiar fără garanția implicită că\n"
-"poate fi VÂNDUT sau că ESTE POTRIVIT PENRU UN ANUMIT SCOP. \n"
-"Vezi Licența Publică Generală GNU pentru mai multe detalii. \n"
-"\n"
-"Ar trebui să fi primit o copie a Licenței Publice Generale GNU\n"
-"împreună cu mate-calc; dacă nu ai primit, contactează\n"
-"Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Calculator cu mod financiar și științific."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Daniel Alămiță <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Calculator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mod"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ajutor"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Standard"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avansat"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financiar"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programare"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Conținut"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copiază"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Lipește"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Anulea_ză"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Refă"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferințe"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Închide"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Despre"
 
diff --git a/po/ru.po b/po/ru.po
index ed95ee0..9d523eb 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -9,21 +9,23 @@
 # Victor Kukshiev <[email protected]>, 2018
 # monsta <[email protected]>, 2018
 # theirix <[email protected]>, 2018
-# Михаил Ильинский (milinsky) <[email protected]>, 2018
+# Михаил Ильинский <[email protected]>, 2018
 # Oldboy Boyold <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Alexei Sorokin <[email protected]>, 2018
 # AlexL <[email protected]>, 2018
 # Alex Putz, 2018
+# Aleksey Kabanov <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Alex Putz, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Russian (https://www.transifex.com/mate/teams/13566/ru/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -536,12 +538,12 @@ msgstr ""
 "произвольной точности для высочайшей точности вычислений.  \n"
 "MATE Calc - это форк  GNOME Calc и часть окружения рабочего стола MATE. Если вы хотите узнать больше о MATE и MATE Calc, пожалуйста, посетите домашнюю страницу проекта."
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Калькулятор MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Калькулятор"
 
@@ -1337,8 +1339,52 @@ msgstr "Показывать %d десятичных _разрядов"
 msgid "Unable to open help file"
 msgstr "Не удалось открыть файл справки"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Команда документирования MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Калькулятор с финансовым и научным режимами."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Александр Сапрыкин <[email protected]>\n"
@@ -1373,111 +1419,71 @@ msgstr ""
 "Юрий Козлов <[email protected]>\n"
 "Evolve32 <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc — свободное программное обеспечение; вы можете\n"
-"распространять его и/или модифицировать на условиях Универсальной \n"
-"общественной лицензии GNU версии 2, либо (на ваше усмотрение) любой более поздней.\n"
-"\n"
-"mate-calc распространяется в надежде на то, что он будет полезен,\n"
-"но БЕЗ КАКИХ-ЛИБО ГАРАНТИЙ; даже без гарантий КОММЕРЧЕСКОЙ\n"
-"ЦЕННОСТИ или ПРИГОДНОСТИ ДЛЯ КОНКРЕТНОЙ ЦЕЛИ. Для получения\n"
-"дополнительных сведений обратитесь к Универсальной общественной\n"
-"лицензии GNU.\n"
-"\n"
-"Вы должны были получить копию лицензии GNU c программой mate-calc;\n"
-"если лицензия не была получена, известите об этом Фонд свободного\n"
-"программного обеспечения по адресу: Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Калькулятор mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Калькулятор с финансовым и научным режимами."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Калькулятор"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Режим"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Помощь"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Простой"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Расширенный"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Финансовый"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "Пр_ограммирование"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Содержание"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Копировать"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Вст_авить"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Отменить"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Ве_рнуть"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Н_астройка"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Выход"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Об апплете"
 
diff --git a/po/rw.po b/po/rw.po
index 907fe8e..7a1831c 100644
--- a/po/rw.po
+++ b/po/rw.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\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"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr ""
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr ""
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr ""
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr ""
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr ""
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr ""
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr ""
 
diff --git a/po/si.po b/po/si.po
index cb3a301..05eebdf 100644
--- a/po/si.po
+++ b/po/si.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Sinhala (https://www.transifex.com/mate/teams/13566/si/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ගණකය"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "උදව් ගොනුව විවෘත කල නොහැක"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "පරිවර්තන ස්තුතිය"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "ගණනය"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "මුල්‍ය සහ විද්‍යාත්මක ආකාර සමඟ ගණකය"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "පරිවර්තන ස්තුතිය"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "ගණනය (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "උදව් (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "සාමාන්‍ය (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "උසස් (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "මූල්‍යමය (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "ක්‍රමලේඛණය (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "අන්තර්ගත (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "පිටපත් කරන්න (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "අලවන්න (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "අහෝසි (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "යළි කරන්න (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "අභිප්‍රේත (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "ඉවත් වන්න (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "සම්බන්ධව (_A)"
 
diff --git a/po/sk.po b/po/sk.po
index 767f34f..2698da9 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -12,15 +12,16 @@
 # Ján Ďanovský <[email protected]>, 2018
 # peter, 2018
 # Erik Bročko <[email protected]>, 2018
+# Vendelín Slezák <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Erik Bročko <[email protected]>, 2018\n"
+"Last-Translator: Vendelín Slezák <[email protected]>, 2019\n"
 "Language-Team: Slovak (https://www.transifex.com/mate/teams/13566/sk/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -534,12 +535,12 @@ msgstr ""
 "a je súčasťou pracovného prostredia MATE. Ak by ste sa chceli dozvedieť viac"
 " o MATE a MATE Calc, navštívte domovskú stránku projektu. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE kalkulačka"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulačka"
 
@@ -1335,119 +1336,124 @@ msgstr "Zobraziť %d _desatinných miest"
 msgid "Unable to open help file"
 msgstr "Nepodarilo sa otvoriť súbor pomocníka"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE Dokumentačný projekt"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Stanislav Višňovský\n"
-"Marcel Telka <[email protected]>\n"
-"Tibor Kaputa <[email protected]>\n"
-"Dušan Kazik <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc je slobodný softvér; môžete ho šíriť a upravovať podľa\n"
-"ustanovení GNU General Public License, vydávanej Free Software \n"
-"Foundation, a to buď vo verzii 2 tejto licencie alebo (podľa vlastného\n"
-"uváženia) v akejkoľvek neskoršej verzii.\n"
-"\n"
-"Tento program je šírený v nádeji, že bude užitočný, avšak BEZ\n"
-"AKEJKOĽVEK ZÁRUKY; neposkytujú sa ani odvodené záruky PREDAJNOSTI\n"
-"alebo VHODNOSTI PRE URČITÝ ÚČEL. Ďalšie podrobnosti hľadajte v GNU\n"
-"General Public License.\n"
-"\n"
-"Kópiu GNU General Public License by ste mali obdržať spolu s týmto\n"
-"programom. Ak sa tak nestalo, napíšte si o ňu Free Software Foundation,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Kalkulačka s finančným a vedeckým režimom."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Stanislav Višňovský\n"
+"Marcel Telka <[email protected]>\n"
+"Tibor Kaputa <[email protected]>\n"
+"Dušan Kazik <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulačka"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Režim"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Pomocník"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Základný"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Rozšírený"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finančný"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programátorský"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Ob_sah"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopírovať"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Vložiť"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Vrátiť"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Znova vykonať"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Nastavenia"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Ukončiť"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "O progr_ame"
 
diff --git a/po/sl.po b/po/sl.po
index f54c5f9..9201bd1 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Helena S <[email protected]>, 2018\n"
 "Language-Team: Slovenian (https://www.transifex.com/mate/teams/13566/sl/)\n"
@@ -528,12 +528,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Računalo MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Računalo"
 
@@ -1329,114 +1329,120 @@ msgstr "Pokaži %d decimalnih _mest"
 msgid "Unable to open help file"
 msgstr "Datoteke pomoči ni mogoče odpreti"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "zasluge-prevajalcev"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc se razširja v upanju, da bo uporaben,\n"
-"vendar BREZ VSAKRŠNEGA JAMSTVA; tudi brez posredne zagotovitve\n"
-"CENOVNE VREDNOSTI ali PRIMERNOSTI ZA DOLOČEN NAMEN. Za\n"
-"podrobnosti glejte besedilo GNU General Public License.\n"
-"\n"
-"mate-calc je objavljen v upanju, da bo uporaben,\n"
-"toda brez kakršnihkoli . Oglejte si splošne javne pravice\n"
-"(GNU General Public License) za več podrobnosti.\n"
-"\n"
-"Skupaj s programom bi morali prejeti kopijo GNU Splošnega javnega\n"
-"dovoljenja. V primeru, da ga niste, pišite na Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Računalo z različnimi načini delovanja."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "zasluge-prevajalcev"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Način"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Pomoč"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Osnovni"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Napredni"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finančni"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programiranje"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Vsebina"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiraj"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Prilepi"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Razveljavi"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Uveljavi"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Možnosti"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Končaj"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_O programu"
 
diff --git a/po/sq.po b/po/sq.po
index ac5e0e0..1101c53 100644
--- a/po/sq.po
+++ b/po/sq.po
@@ -5,18 +5,18 @@
 # 
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
-# Ardit Dani <[email protected]>, 2018
 # Alban <[email protected]>, 2018
 # Indrit Bashkimi <[email protected]>, 2018
+# Ardit Dani <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Indrit Bashkimi <[email protected]>, 2018\n"
+"Last-Translator: Ardit Dani <[email protected]>, 2019\n"
 "Language-Team: Albanian (https://www.transifex.com/mate/teams/13566/sq/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -120,7 +120,7 @@ msgstr ""
 
 #: ../data/buttons-financial.ui.h:3 ../data/buttons-programming.ui.h:3
 msgid "_Cancel"
-msgstr ""
+msgstr "_Anulo"
 
 #. Payment Period Dialog: Button to calculate result
 #: ../data/buttons-financial.ui.h:5
@@ -500,12 +500,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Llogaritës"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Makinë llogaritëse"
 
@@ -1281,105 +1281,123 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr "E pamundur hapja e file të ndihmës"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Elian Myftiu <[email protected]>\n"
-"Indrit Bashkimi <[email protected]>\n"
-"Laurent Dhima <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Makinë llogaritëse me modalitete finance dhe shkencore."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Elian Myftiu <[email protected]>\n"
+"Indrit Bashkimi <[email protected]>\n"
+"Laurent Dhima <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator (llogaritës)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Modaliteti"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Ndihmë"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Bazë"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Përparuar"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Financor"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Përmbajtja"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopjo"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Ngjite"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Anullo"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Përsërit"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferenca"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Dalja"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Rreth"
 
diff --git a/po/sr.po b/po/sr.po
index aa28870..f7ad7d7 100644
--- a/po/sr.po
+++ b/po/sr.po
@@ -5,16 +5,16 @@
 # 
 # Translators:
 # Stefano Karapetsas <[email protected]>, 2018
-# Мирослав Николић <[email protected]>, 2018
+# Мирослав Николић <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Мирослав Николић <[email protected]>, 2018\n"
+"Last-Translator: Мирослав Николић <[email protected]>, 2019\n"
 "Language-Team: Serbian (https://www.transifex.com/mate/teams/13566/sr/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -530,12 +530,12 @@ msgstr ""
 "површи. Ако желите да сазнате више о Мејтовом дигитрону, посетите матичну "
 "страницу пројекта. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Мејтов дигитрон"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Дигитрон"
 
@@ -1329,116 +1329,120 @@ msgstr "_Прикажи %d децимална места"
 msgid "Unable to open help file"
 msgstr "Не могу да отворим датотеку помоћи"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Мирослав Николић <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Тим документације Гнома"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"Овај програм је слободан софтвер; можете га прослеђивати\n"
-"и/или мењати под условима Гнуове опште јавне лиценце коју\n"
-"је објавила Задужбина слободног софтвера; издања 2 лиценце\n"
-"или (по вашем избору) било којег новијег издања.\n"
-"\n"
-"Овај програм се расподељује у нади да ће бити користан,\n"
-"али БЕЗ ИКАКВЕ ГАРАНЦИЈЕ; чак и без примењене гаранције\n"
-"ТРЖИШНЕ ВРЕДНОСТИ или ПРИЛАГОЂЕНОСТИ ОДРЕЂЕНОЈ НАМЕНИ.\n"
-"Погледајте Гнуову Општу јавну лиценцу за више детаља.\n"
-"\n"
-"Требали сте да примите примерак Гнуове Опште јавне лиценце\n"
-"уз овај програм. Ако нисте, пишите Задужбини слободног\n"
-"софтвера на адресу: „Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA“"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Мејтов калкулатор"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Дигитрон са финансијским и научним начином рада."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Мирослав Николић <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Дигитрон"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Режим"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "По_моћ"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Основни"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Напредни"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Финансијски"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Програмерски"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Садржаји"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Умножи"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "У_баци"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Опо_зови"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Понови"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Поставке"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Изађи"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_О програму"
 
diff --git a/po/[email protected] b/po/[email protected]
index d090e15..0f26fff 100644
--- a/po/[email protected]
+++ b/po/[email protected]
@@ -12,10 +12,10 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
-"Language-Team: Serbian (Latin) (https://www.transifex.com/mate/teams/13566/sr%40latin/)\n"
+"Language-Team: Serbian (Latin) (https://www.transifex.com/mate/teams/13566/sr@latin/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -524,12 +524,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulator"
 
@@ -1323,105 +1323,123 @@ msgstr "_Prikaži %d decimalna mesta"
 msgid "Unable to open help file"
 msgstr "Ne mogu da otvorim datoteku pomoći"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
 msgstr ""
-"Slobodan D. Sredojević <[email protected]>\n"
-"Danilo Šegan <[email protected]>\n"
-"Ivan Pejić <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Gnomov kalkulator"
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Kalkulator sa finansijskim i naučnim načinom rada."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Slobodan D. Sredojević <[email protected]>\n"
+"Danilo Šegan <[email protected]>\n"
+"Ivan Pejić <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Mod"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Pomoć"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Osnovni"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "Na_predni"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansijski"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "P_rogramerski"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Sad_ržaj"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Umnoži"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "U_baci"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Opo_zovi"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ponovi"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "Po_stavke"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Izađi"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_O programu"
 
diff --git a/po/sv.po b/po/sv.po
index 28111c4..2d2c8d7 100644
--- a/po/sv.po
+++ b/po/sv.po
@@ -7,21 +7,22 @@
 # Kristoffer Grundström <[email protected]>, 2018
 # Henrik Mattsson-Mårn <[email protected]>, 2018
 # Jonatan Nyberg, 2018
-# Erik, 2018
+# 6a42dd6e7ca9a813693714b0d9aa1ad8, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # Patrik Nilsson <[email protected]>, 2018
 # Gaius Anderson, 2018
 # Tobias Lekare <[email protected]>, 2018
 # Philip Andersen <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Philip Andersen <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Swedish (https://www.transifex.com/mate/teams/13566/sv/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -539,12 +540,12 @@ msgstr ""
 "skulle vilja veta mer om MATE och MATE Kalk, vänligen besöka projektets "
 "hemsida. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Kalkylatorn"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkylator"
 
@@ -1336,114 +1337,120 @@ msgstr "Visa %d decimal_platser"
 msgid "Unable to open help file"
 msgstr "Kunde inte öppna hjälpfilen"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Kristoffer Grundström <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"mate-calc är fri programvara. Du får distribuera och/eller \n"
-"modifiera den så länge du följer GNU General Public License \n"
-"som publiceras av Free Software Foundation. Antingen version 2 \n"
-"av licensen eller (om du vill) valfri efterföljande version.\n"
-"\n"
-"mate-calc distribueras med förhoppning om att det ska komma till \n"
-"nytta, men HELT UTAN GARANTIER. Se GNU General Public License \n"
-"för mer information.\n"
-"\n"
-"Du ska ha fått en kopia av GNU General Public License tillsammans \n"
-"med mate-calc, om inte, skriv till Free Software Foundation, Inc., \n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Kalkylator med finansiella och vetenskapliga lägen."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Kristoffer Grundström <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Miniräknare"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Läge"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Hjälp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Grundläggande"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Avancerad"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Finansiell"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programmering"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Innehåll"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopiera"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Klistra _in"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Ångra"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Gör om"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Inställningar"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Avsluta"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Om"
 
diff --git a/po/ta.po b/po/ta.po
index cde2b8a..47626b5 100644
--- a/po/ta.po
+++ b/po/ta.po
@@ -14,7 +14,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Kamala Kannan, 2018\n"
 "Language-Team: Tamil (https://www.transifex.com/mate/teams/13566/ta/)\n"
@@ -523,12 +523,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE கணிப்பான்"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "கணிப்பான்"
 
@@ -1320,116 +1320,123 @@ msgstr "_p %d தசம இடங்களை காட்டு"
 msgid "Unable to open help file"
 msgstr "உதவி கோப்பினை திறக்க முடியவில்லை"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Valmantas Palikša https://launchpad.net/~walmis\n"
-"  bhuvi https://launchpad.net/~bhuvanesh"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-கணிப்பான் ஓர் இலவச மென் பொருளாகும்.நீங்கள் இலவச மென் பொருள் "
-"அமைப்பினால் வெளியிடப்பட்ட ஜிஎன்யு பொது அனுமதிக்கான விதிகளின் படி இந்த 2ம் "
-"பதிப்பையோ அல்லது அடுத்த பதிப்புகளையோ நீங்கள் (விருப்பப்படி) மாற்றலாம். "
-"அல்லது மீண்டும் பறிமாறலாம். mate-கணிப்பான் உபயோகப்படும் என்ற "
-"எதிர்பார்ப்புடன் வெளியிடப்படுகிறது. ஆனால் விற்க தகுதி, குறிப்பிட்ட "
-"செயலுக்கான தகுதி உள்பட எந்த உத்திரவாதமும் அளிக்கப்படவில்லை. மேற் கொண்டு "
-"விவரங்களுக்கு ஜிஎன்யு பொது அனுமதிக்கான விதிகளை பார்க்கவும் mate-கணிப்பான் "
-"உடன் ஜிஎன்யு பொது அனுமதிக்கான விதிகளின் பிரதி உங்களுக்கு கிடைத்திருக்க "
-"வேண்டும். இல்லையானால் கீழ் கண்ட முகவரிக்கு கடிதம் எழுதவும். Free Software "
-"Foundation, Inc., 151 Franklin Street, Fifth Floor, Boston, MA 02110-1301 "
-"USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "ஜி கால்கடூல்"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "கணிப்பானுடன் நிதி தொடர்பான மற்றும் அறிவியல் பாங்குகள்."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Valmantas Palikša https://launchpad.net/~walmis\n"
+"  bhuvi https://launchpad.net/~bhuvanesh"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "கணிப்பி (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_M மோட்"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_உதவி"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "அடிப்படை (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "மேம்பட்ட  (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "நிதிநிலை (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "நிரலாக்கம் (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_C உள்ளடக்கங்கள்"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "நகல் (_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_ஒட்டு"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_கவில்"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_மீண்டும்"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "விருப்ப தேர்வுகள் "
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_வ _வெளிச்செல்"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "பற்றி "
 
diff --git a/po/te.po b/po/te.po
index 25d3eae..864b046 100644
--- a/po/te.po
+++ b/po/te.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Telugu (https://www.transifex.com/mate/teams/13566/te/)\n"
@@ -524,12 +524,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "గణన పరికరం"
 
@@ -1321,102 +1321,120 @@ msgstr "%d దశాంశ స్థానాలను చూపించు (_p
 msgid "Unable to open help file"
 msgstr "సహాయపు దస్త్రాన్ని తెరువలేదు"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Praveen Illa <[email protected]>, 2014"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "గ్నూగణనపరికరం"
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "ఆర్థిక మరియు శాస్త్రీయ విధములున్న గణన పరికరం."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Praveen Illa <[email protected]>, 2014"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "గణనపరికరం (_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "సహాయం (_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "ప్రాథమిక (_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "ఆధునిక (_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "ఆర్థికగణని (_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "ప్రోగ్రామింగ్ (_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "సారములు (_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "నకలుతీయు(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "అతికించు (_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "చేసింది రద్దు (_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "మళ్ళీచేయి (_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "అభిరుచులు (_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "నిష్క్రమించు (_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "గురించి (_A)"
 
diff --git a/po/th.po b/po/th.po
index 5d4ec67..0dee25a 100644
--- a/po/th.po
+++ b/po/th.po
@@ -9,15 +9,16 @@
 # Jirasinee Tangtitawong <[email protected]>, 2018
 # Rockers <[email protected]>, 2018
 # Akom <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Akom <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Thai (https://www.transifex.com/mate/teams/13566/th/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -524,12 +525,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "เครื่องคิดเลข MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "เครื่องคิดเลข"
 
@@ -1319,114 +1320,120 @@ msgstr "แสดงจุดทศนิยม %d _ตำแหน่ง"
 msgid "Unable to open help file"
 msgstr "ไม่สามารถเปิดแฟ้มวิธีใช้"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Akom Chotiphantawanon <[email protected]>, 2016"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "ซัน ไมโครซิสเท็มส์"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
 msgstr ""
-"mate-calc เป็นซอฟต์แวร์เสรี คุณสามารถแจกจ่ายต่อ และ/หรือ แก้ไขโปรแกรมได้\n"
-"ภายใต้เงื่อนไขของ GNU General Public License ที่เผยแพร่โดยมูลนิธิซอฟต์แวร์เสรี\n"
-"ไม่ว่าจะเป็นสัญญาอนุญาตรุ่นที่ 2 หรือรุ่นถัดมา (ตามแต่คุณจะเลือก)\n"
-"\n"
-"mate-calc เผยแพร่ด้วยความหวังว่าโปรแกรมจะมีประโยชน์\n"
-"แต่ _ไม่มีการรับประกันใดๆ_ ไม่มีแม้การรับประกัน _อรรถประโยชน์เชิงพาณิชย์_\n"
-"หรือ _ความเหมาะสมสำหรับวัตถุประสงค์เฉพาะกิจใดๆ_ กรุณาอ่าน\n"
-"GNU General Public License เพื่อดูรายละเอียดเพิ่มเติม\n"
-"\n"
-"คุณควรจะได้รับสำเนาของ GNU General Public License มาพร้อมกับ mate-calc\n"
-"ถ้าคุณไม่ได้รับ กรุณาติดต่อไปที่ Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "เครื่องคิดเลข พร้อมด้วยโหมดการเงินและวิทยาศาสตร์"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Akom Chotiphantawanon <[email protected]>, 2016"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "เ_ครื่องคิดเลข"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "โห_มด"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_วิธีใช้"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_พื้นฐาน"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "พิ_เศษ"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "การเ_งิน"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "การเขียนโ_ปรแกรม"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "เ_นื้อหา"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_คัดลอก"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_แปะ"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "เรี_ยกคืน"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_ทำซ้ำ"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_การกำหนดค่า"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_ออก"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "เ_กี่ยวกับ"
 
diff --git a/po/tk.po b/po/tk.po
index cf20bf7..32df78c 100644
--- a/po/tk.po
+++ b/po/tk.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Turkmen (https://www.transifex.com/mate/teams/13566/tk/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Çot"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Maliýe we Ilmi modly Çot"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Help"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Mazmunlar"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Nusgala"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Ýabşyr"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Izine Al"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Ýene Et"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Çyk"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Barada"
 
diff --git a/po/tr.po b/po/tr.po
index 18ae629..de1fefe 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -9,16 +9,17 @@
 # Butterfly <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # tarakbumba <[email protected]>, 2018
-# mauron, 2018
+# mauron, 2019
+# Cenk Yıldızlı <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: mauron, 2018\n"
+"Last-Translator: Cenk Yıldızlı <[email protected]>, 2019\n"
 "Language-Team: Turkish (https://www.transifex.com/mate/teams/13566/tr/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -538,12 +539,12 @@ msgstr ""
 "bir parçasıdır. MATE ve MATE Hesap Makinesi hakkında daha fazla bilgi "
 "edinmek isterseniz, projenin ana sayfasını ziyaret ediniz. </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Hesap Makinesi"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Hesap Makinesi"
 
@@ -1335,8 +1336,58 @@ msgstr "%d ondalık _hane göster"
 msgid "Unable to open help file"
 msgstr "Yardım dosyası açılamadı"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE Belgelendirme Projesi"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+"MATE Takvim özgür yazılımdır; Özgür Yazılım Vakfı tarafından yayınlanmış GNU"
+" Genel Kamu Lisansı'nın -Lisans'ın ikinci veya (size bağlı olarak) daha üstü"
+" versiyonları- koşulları altında yeniden dağıtabilir ve/veya "
+"değiştirebilirsiniz. "
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr "MATE Takvim Hakkında"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Tüm hakkı saklıdır © 1986–2010 GCalctool yazarları\n"
+"Tüm hakkı saklıdır © 2011-2019 MATE geliştiricileri "
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "Ekonomi ve bilim kipli hesap makinesi."
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "GNOME projesine katkıda bulunanlar:\n"
@@ -1350,109 +1401,71 @@ msgstr ""
 "Atilla Öntaş <[email protected]>, 2014\n"
 "Emre FIRAT <[email protected]>, 2013, 2014, 2015"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc özgür bir yazılımdır, onu Özgür Yazılım Vakfının yayınladığı\n"
-"GNU Genel Kamu Lisansının 2. sürümü veya (tercihinize bağlı) daha\n"
-"sonraki sürümleri altında dağıtabilir ve/veya değiştirebilirsiniz.\n"
-"\n"
-"mate-calc faydalı olacağı umut edilerek dağıtılmaktadır, fakat HİÇBİR\n"
-"GARANTİSİ YOKTUR; hatta ÜRÜN DEĞERİ ya da BİR AMACA\n"
-"UYGUNLUK gibi garantiler de vermez.  Lütfen GNU Genel Kamu\n"
-"Lisansını daha fazla detay için inceleyin.\n"
-"\n"
-"GNU Genel Kamu Lisansını mate-calc ile birlikte almış olmalısınız, eğer\n"
-"almadıysanız lütfen Free Software Foundation, Inc., 151 Franklin Street,\n"
-"Fifth Floor, Boston, MA 02110-1301 USA adresine yazın"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "Ekonomi ve bilim kipli hesap makinesi."
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Hesap Makinesi"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "K_ip"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Yardım"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Temel"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Gelişmiş"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Ekonomi"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Programlama"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "İçi_ndekiler"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopyala"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Y_apıştır"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Geri"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Tekrarla"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Tercihler"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Çık"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Hakkında"
 
diff --git a/po/tt.po b/po/tt.po
index 6992d14..871ed2a 100644
--- a/po/tt.po
+++ b/po/tt.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Tatar (https://www.transifex.com/mate/teams/13566/tt/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1276,102 +1276,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Yärdäm"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Eçtälek"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "İs_kä al:"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Ös_tä"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Kire _al"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Kire _quy"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr ""
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Çığış"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Turında"
 
diff --git a/po/ug.po b/po/ug.po
index 88e67b4..3927be9 100644
--- a/po/ug.po
+++ b/po/ug.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Uighur (https://www.transifex.com/mate/teams/13566/ug/)\n"
@@ -499,12 +499,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "ھېسابلىغۇچ"
 
@@ -1295,8 +1295,52 @@ msgstr "چېكىتنىڭ كەينىدىن %d خانە كۆرسىتىش(_P)"
 msgid "Unable to open help file"
 msgstr "ياردەم ھۆججىتىنى ئاچقىلى بولمىدى"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "ئىقتىسادىي ۋە ئىلمىي ھېسابلىغۇچ"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Gheyret Kenji <[email protected]>\n"
@@ -1309,97 +1353,71 @@ msgstr ""
 "  Gheyret T.Kenji https://launchpad.net/~gheyretkenji\n"
 "  Sahran https://launchpad.net/~sahran"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "ئىقتىسادىي ۋە ئىلمىي ھېسابلىغۇچ"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "ياردەم(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "مەزمۇن(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "كۆچۈر(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "چاپلا(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "يېنىۋال(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "تەكرارلا(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "مايىللىق(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "ئاخىرلاشتۇرۇش(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "ھەققىدە(_A)"
 
diff --git a/po/uk.po b/po/uk.po
index 05774fc..5f4b9f6 100644
--- a/po/uk.po
+++ b/po/uk.po
@@ -7,16 +7,17 @@
 # zubr139, 2018
 # Шаповалов Анатолій Романович <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
-# Микола Ткач <[email protected]>, 2018
+# Микола Ткач <[email protected]>, 2019
+# Wolfgang Ulbrich <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Микола Ткач <[email protected]>, 2018\n"
+"Last-Translator: Wolfgang Ulbrich <[email protected]>, 2019\n"
 "Language-Team: Ukrainian (https://www.transifex.com/mate/teams/13566/uk/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -532,12 +533,12 @@ msgstr ""
 "довільної точности для найвищої точности обчислень.  \n"
 "MATE Calc - це відгалуження  GNOME Calc й частина оточення стільниці MATE. Якщо Ви волієте дізнатися більше про MATE і MATE Calc, будь ласка, відвідайте домашню сторінку проєкту."
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "Рахівник MATE"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Рахівник"
 
@@ -1333,119 +1334,123 @@ msgstr "Показати _місця десяткового %d"
 msgid "Unable to open help file"
 msgstr "Не вдається відкрити файл довідки"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "Команда документування MATE"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
 msgstr ""
-"Yarema aka Knedlyk <[email protected]>,\n"
-"Микола Ткач <[email protected]>,\n"
-"Oleh Tsyupka <[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc — вільне проґрамне забезпечення; Ви можете\n"
-"розповсюджувати його й/або змінювати за умовами Універсальної \n"
-"суспільної ліцензії GNU версії 2, або (на Ваш розсуд) будь-якої пізнішої.\n"
-"\n"
-"mate-calc розповсюджується зі сподіванням на те, що він буде корисним,\n"
-"але БЕЗ ЯКИХОСЬ ЗАПОРУК; навіть без запорук КОМЕРЦІЙНОЇ\n"
-"ВАРТОСТИ або ПРИДАТНОСТИ ДЛЯ КОНКРЕТНОЇ МЕТИ. Для отримання\n"
-"додаткових відомостей зверніться до Універсальної суспільної\n"
-"ліцензії GNU.\n"
-"\n"
-"Ви мали були отримати копію ліцензії GNU з проґрамою mate-calc;\n"
-"якщо ліцензія не була отримана, повідомте про це Фундацію вільного\n"
-"проґрамного забезпечення за адресою: Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "Рахівник"
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Рахівник з фінансовими і науковими функціями."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Yarema aka Knedlyk <[email protected]>,\n"
+"Микола Ткач <[email protected]>,\n"
+"Oleh Tsyupka <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Рахівник"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "Р_ежим"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Допомога"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Простий"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Розширений"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Фінансовий"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Проґрамування"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Вміст"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Копіювати"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "Вст_авити"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "Пов_ернути"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Повт_орити"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Налаштування"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Вийти"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Про проґраму"
 
diff --git a/po/ur.po b/po/ur.po
index 21437ae..bcdf15c 100644
--- a/po/ur.po
+++ b/po/ur.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: mauron, 2018\n"
 "Language-Team: Urdu (https://www.transifex.com/mate/teams/13566/ur/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,8 +1278,52 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr ""
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "محمد علی مکی\n"
@@ -1289,97 +1333,71 @@ msgstr ""
 "مکی کا بلاگ\n"
 "http://makki.urducoder.com"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr ""
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_ہدایات"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_ہدایات کے موضوعات"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_کاپی کریں"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_منسوخ کریں"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "ا_عادہ کریں"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_ترجیحات"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_برخاست کریں"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_بابت"
 
diff --git a/po/uz.po b/po/uz.po
index d7e0453..bfb42cd 100644
--- a/po/uz.po
+++ b/po/uz.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: muzaffar habibullayev <[email protected]>, 2018\n"
 "Language-Team: Uzbek (https://www.transifex.com/mate/teams/13566/uz/)\n"
@@ -498,12 +498,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE Kalkulyator"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Kalkulyator"
 
@@ -1277,102 +1277,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "tarjimonlar"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "tarjimonlar"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "_Kalkulyator"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "_Rejim"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Yordam"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Sodda"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Murakkab"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Moliyaviy"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Dasturlash"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Tarkibi"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Nusxa olish"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr ""
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Bekor qilish"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Qaytarish"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Xususiyatlar"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Chiqish"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Haqida"
 
diff --git a/po/vi.po b/po/vi.po
index 000e211..6743551 100644
--- a/po/vi.po
+++ b/po/vi.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Horazone Detex <[email protected]>, 2018\n"
 "Language-Team: Vietnamese (https://www.transifex.com/mate/teams/13566/vi/)\n"
@@ -524,12 +524,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Bàn tính"
 
@@ -1315,102 +1315,120 @@ msgstr "Hiện %d _số thập phân"
 msgid "Unable to open help file"
 msgstr "Không thể mở tập tin trợ giúp"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "giới thiệu-nhóm dịch"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Máy tính với chế độ tài chính và khoa học."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "giới thiệu-nhóm dịch"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "Bàn _tính"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "Trợ _giúp"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "Cơ _bản"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "_Cấp cao"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "_Tài chính"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "_Lập trình"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Mụ_c lục"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Chép"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Dán"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Hủy bước"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "Bước _lại"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Tùy thích"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "T_hoát"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Giới thiệu"
 
diff --git a/po/wa.po b/po/wa.po
index 3983730..ae49d98 100644
--- a/po/wa.po
+++ b/po/wa.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Walloon (https://www.transifex.com/mate/teams/13566/wa/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Pablo Saratxaga <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Pablo Saratxaga <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Aidance"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "Å d_vins"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Copyî"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "C_laper"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Disfé"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Rifé"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Preferinces"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "Moussî _foû"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "Å_d fwait"
 
diff --git a/po/xh.po b/po/xh.po
index dff2a9f..e0f0c6f 100644
--- a/po/xh.po
+++ b/po/xh.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Xhosa (https://www.transifex.com/mate/teams/13566/xh/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "Ikhaltyuleyitha"
 
@@ -1278,102 +1278,120 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
-msgstr "Canonical Ltd <[email protected]>"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:245
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "I-mate-calc"
-
-#: ../src/math-window.c:265
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "Ikhaltyuleyitha enentlobo zemali na manani."
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr "Canonical Ltd <[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "I_khaltyuleyitha"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Nceda"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "_Esisiseko"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "E_hambele phambili"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "E_zezimali"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Okuqulethweyo"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopa"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Ncamathelisa"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Buyisela okwenziweyo"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Yenze kwakhona"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Ezikhethwayo"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Phuma"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Malunga"
 
diff --git a/po/zh_CN.po b/po/zh_CN.po
index 2e2e8a7..bf836b2 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -10,15 +10,17 @@
 # liushuyu011 <[email protected]>, 2018
 # 玉堂白鹤 <[email protected]>, 2018
 # Mingcong Bai <[email protected]>, 2018
+# Wolfgang Ulbrich <[email protected]>, 2019
+# CNAmira <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Mingcong Bai <[email protected]>, 2018\n"
+"Last-Translator: CNAmira <[email protected]>, 2019\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"
@@ -506,12 +508,12 @@ msgstr ""
 " MATE 计算器是 GNOME 计算器的一个分支，并且现在是 MATE 桌面环境的一部分。如果您了解更多有关 MATE "
 "计算器的信息请访问项目主页。</p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE 计算器"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "计算器"
 
@@ -1301,8 +1303,52 @@ msgstr "显示 %d 个十进制位(_P)"
 msgid "Unable to open help file"
 msgstr "无法打开帮助文件"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "Sun Microsystems"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE 文档团队"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "带有财务和科学模式的计算器。"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "Christopher Meng <[email protected]>, 2012-2013\n"
@@ -1316,103 +1362,71 @@ msgstr ""
 "白铭骢 <[email protected]>, 2015-2016\n"
 "刘子兴 <[email protected]>, 2015-2016"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc 是自由软件；您可以在自由软件基金会发布的 GNU 通用公共许可证的条款下重新分发和（或）修改它。\\n您可以选择使用 GPL "
-"第二版， 或\\n(按照您的意愿)任何更新的版本。\\n\\n mate-calc 分发的目的是希望它物有所用， "
-"但是没有任何担保；没有对其适销性和某一特定目的下的\\n适用性的任何哪怕是暗示的担保。 请查阅 GNU "
-"通用公共许可证以获得更多信息。\\n\\n你应该已经跟 mate-calc 一起收到一份 GNU 通用公共许可证的副本； "
-"\\n如果没有，请写信至：Free Software Foundation, Inc.,\\n 151 Franklin Street, Fifth "
-"Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "mate-calc"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "带有财务和科学模式的计算器。"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "计算器（_C）"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "帮助（_H）"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "基本(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "高级(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "财务(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "编程(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "目录(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "复制(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "粘贴(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "撤消(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "重做(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "属性(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "退出(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "关于(_A)"
 
diff --git a/po/zh_HK.po b/po/zh_HK.po
index 33c5b06..1cff116 100644
--- a/po/zh_HK.po
+++ b/po/zh_HK.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Chinese (Hong Kong) (https://www.transifex.com/mate/teams/13566/zh_HK/)\n"
@@ -500,12 +500,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE 計數機"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "計數機"
 
@@ -1294,116 +1294,123 @@ msgstr "顯示小數點後 %d 位數(_P)"
 msgid "Unable to open help file"
 msgstr "無法開啟求助檔案"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
 msgstr ""
-"Launchpad Contributions:\n"
-"  Valmantas Palikša https://launchpad.net/~walmis\n"
-"  yanq.wang https://launchpad.net/~nile-wangyq"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+"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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
+msgstr ""
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
 msgstr ""
-"mate-calc 是免費軟件；在根據由自由軟件基金會所發表的\n"
-"GNU 通用公共授權 (GPL) 之下，你可以重新散佈並/或修改它；\n"
-"你可以自由選擇依據第二版或任何之後版本的 GPL。\n"
-"\n"
-"散佈 mate-calc 是希望它會成為實用的軟件，\n"
-"但不提供任何型式的保養 (包括可售性或豁免條款)。\n"
-"詳情請參閱 GNU 通用公共授權。\n"
-"\n"
-"連同 mate-calc，你應該收到一份 GNU 通用公共授權副本；\n"
-"如果沒有，請寫信至自由軟體基金會 Free Software Foundation, Inc.，地址：\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "計數機"
 
-#: ../src/math-window.c:265
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr "附有財務及科學計算模式的計數機。"
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Launchpad Contributions:\n"
+"  Valmantas Palikša https://launchpad.net/~walmis\n"
+"  yanq.wang https://launchpad.net/~nile-wangyq"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "計數機(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "求助(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "基本模式(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "進階模式(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "財務計算模式(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "軟件開發(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "內容(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "複製(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "貼上(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "復原(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "取消復原(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "偏好設定(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "結束(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "關於(_A)"
 
diff --git a/po/zh_TW.po b/po/zh_TW.po
index 38124d0..ede81be 100644
--- a/po/zh_TW.po
+++ b/po/zh_TW.po
@@ -7,16 +7,17 @@
 # Walter Cheuk <[email protected]>, 2018
 # Stefano Karapetsas <[email protected]>, 2018
 # 趙惟倫 <[email protected]>, 2018
-# Jeff Huang <[email protected]>, 2018
+# Woodman Tuen <[email protected]>, 2019
+# Jeff Huang <[email protected]>, 2019
 # 
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
-"Last-Translator: Jeff Huang <[email protected]>, 2018\n"
+"Last-Translator: Jeff Huang <[email protected]>, 2019\n"
 "Language-Team: Chinese (Taiwan) (https://www.transifex.com/mate/teams/13566/zh_TW/)\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -505,12 +506,12 @@ 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。 </p>"
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr "MATE 計算機"
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr "計算機"
 
@@ -1299,8 +1300,59 @@ msgstr "顯示小數點後 %d 位數(_P)"
 msgid "Unable to open help file"
 msgstr "無法開啟求助檔案"
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr "昇陽電腦"
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr "MATE 文件團隊"
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+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:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+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:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+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:263
+msgid "About MATE Calculator"
+msgstr "關於 MATE 計算機"
+
+#: ../src/math-window.c:264
+msgid ""
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+"Copyright © 1986–2010 GCalctool 作者\n"
+"Copyright © 2011–2019 MATE 開發者"
+
+#: ../src/math-window.c:267
+msgid "Calculator with financial and scientific modes."
+msgstr "附有財務及科學計算模式的計算機。"
+
+#: ../src/math-window.c:270
 msgid "translator-credits"
 msgstr ""
 "黃柏諺 <[email protected]>,2013-14\n"
@@ -1310,109 +1362,71 @@ msgstr ""
 "  fetag https://launchpad.net/~coolfire\n"
 "Walter Cheuk <[email protected]>, 2016."
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
-msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-"mate-calc 為自由軟體；您可依據自由軟體基金會所發表\n"
-"的 GNU 通用公共授權條款規定，就本程式再為散布與／或修改；\n"
-"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。\n"
-"\n"
-"mate-calc 係基於使用目的而加以散布，\n"
-"然而不負任何擔保責任；\n"
-"亦無對適售性或特定目的適用性所為的默示性擔保。\n"
-"詳情請參照 GNU 通用公共授權。\n"
-"\n"
-"您應已收到附於本程式的 GNU 通用公共授權的副本；如果沒有，請寫信至\n"
-"Free Software Foundation, Inc.,\n"
-"51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr "計算機"
-
-#: ../src/math-window.c:265
-msgid "Calculator with financial and scientific modes."
-msgstr "附有財務及科學計算模式的計算機。"
-
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr "計算機(_C)"
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr "模式(_M)"
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "說明(_H)"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr "基本模式(_B)"
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr "進階模式(_A)"
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr "財務計算模式(_F)"
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr "軟體開發(_P)"
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "內容(_C)"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "複製(_C)"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "貼上(_P)"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "復原(_U)"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "重做(_R)"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "偏好設定(_P)"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "結束(_Q)"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "關於(_A)"
 
diff --git a/po/zu.po b/po/zu.po
index 73f2341..4ee22dd 100644
--- a/po/zu.po
+++ b/po/zu.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MATE Desktop Environment\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-02-09 20:37+0100\n"
+"POT-Creation-Date: 2019-03-20 09:59+0100\n"
 "PO-Revision-Date: 2018-03-11 16:33+0000\n"
 "Last-Translator: Stefano Karapetsas <[email protected]>, 2018\n"
 "Language-Team: Zulu (https://www.transifex.com/mate/teams/13566/zu/)\n"
@@ -497,12 +497,12 @@ msgid ""
 "more about MATE and MATE Calc, please visit the project's home page. </p>"
 msgstr ""
 
-#: ../data/mate-calc.desktop.in.h:1
+#: ../data/mate-calc.desktop.in.h:1 ../src/math-window.c:261
 msgid "MATE Calculator"
 msgstr ""
 
 #. Title of main window
-#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:563
+#: ../data/mate-calc.desktop.in.h:2 ../src/math-window.c:568
 msgid "Calculator"
 msgstr ""
 
@@ -1278,104 +1278,122 @@ msgstr ""
 msgid "Unable to open help file"
 msgstr ""
 
-#. The translator credits. Please translate this with your name(s).
-#: ../src/math-window.c:239
-msgid "translator-credits"
+#: ../src/math-window.c:234
+msgid "Sun Microsystems"
+msgstr ""
+
+#: ../src/math-window.c:235
+msgid "MATE Documentation Team"
+msgstr ""
+
+#: ../src/math-window.c:241
+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 "
+"Software Foundation; either version 2 of the License, or (at your option) "
+"any later version."
+msgstr ""
+
+#: ../src/math-window.c:245
+msgid ""
+"MATE Calculator is distributed in the hope that it will be useful, but "
+"WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY "
+"or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for"
+" more details."
+msgstr ""
+
+#: ../src/math-window.c:249
+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., 151 "
+"Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
+msgstr ""
+
+#: ../src/math-window.c:263
+msgid "About MATE Calculator"
 msgstr ""
-"Kemi Translations <[email protected]>Translate.org.za "
-"<[email protected]>"
 
-#. The license this software is under (GPL2+)
-#: ../src/math-window.c:246
+#: ../src/math-window.c:264
 msgid ""
-"mate-calc is free software; you can redistribute it and/or modify\n"
-"it under the terms of the GNU General Public License as published by\n"
-"the Free Software Foundation; either version 2 of the License, or\n"
-"(at your option) any later version.\n"
-"\n"
-"mate-calc is distributed in the hope that it will be useful,\n"
-"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
-"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
-"GNU General Public License for more details.\n"
-"\n"
-"You should have received a copy of the GNU General Public License\n"
-"along with mate-calc; if not, write to the Free Software Foundation, Inc.,\n"
-"151 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA"
-msgstr ""
-
-#: ../src/math-window.c:261
-msgid "mate-calc"
-msgstr ""
-
-#: ../src/math-window.c:265
+"Copyright © 1986–2010 The GCalctool authors\n"
+"Copyright © 2011-2019 MATE developers"
+msgstr ""
+
+#: ../src/math-window.c:267
 msgid "Calculator with financial and scientific modes."
 msgstr ""
 
+#: ../src/math-window.c:270
+msgid "translator-credits"
+msgstr ""
+"Kemi Translations <[email protected]>Translate.org.za "
+"<[email protected]>"
+
 #. Calculator menu
-#: ../src/math-window.c:398
+#: ../src/math-window.c:403
 msgid "_Calculator"
 msgstr ""
 
 #. Mode menu
-#: ../src/math-window.c:400
+#: ../src/math-window.c:405
 msgid "_Mode"
 msgstr ""
 
 #. Help menu label
-#: ../src/math-window.c:402
+#: ../src/math-window.c:407
 msgid "_Help"
 msgstr "_Usizo"
 
 #. Basic menu label
-#: ../src/math-window.c:404
+#: ../src/math-window.c:409
 msgid "_Basic"
 msgstr ""
 
 #. Advanced menu label
-#: ../src/math-window.c:406
+#: ../src/math-window.c:411
 msgid "_Advanced"
 msgstr ""
 
 #. Financial menu label
-#: ../src/math-window.c:408
+#: ../src/math-window.c:413
 msgid "_Financial"
 msgstr ""
 
 #. Programming menu label
-#: ../src/math-window.c:410
+#: ../src/math-window.c:415
 msgid "_Programming"
 msgstr ""
 
 #. Help>Contents menu label
-#: ../src/math-window.c:412
+#: ../src/math-window.c:417
 msgid "_Contents"
 msgstr "_Iziqikithi"
 
-#: ../src/math-window.c:415
+#: ../src/math-window.c:420
 msgid "_Copy"
 msgstr "_Kopisha"
 
-#: ../src/math-window.c:417
+#: ../src/math-window.c:422
 msgid "_Paste"
 msgstr "_Namathisela"
 
-#: ../src/math-window.c:419
+#: ../src/math-window.c:424
 msgid "_Undo"
 msgstr "_Ungakwenzi"
 
-#: ../src/math-window.c:421
+#: ../src/math-window.c:426
 msgid "_Redo"
 msgstr "_Yenza futhi"
 
-#: ../src/math-window.c:424
+#: ../src/math-window.c:429
 msgid "_Preferences"
 msgstr "_Okuthandekayo"
 
-#: ../src/math-window.c:426
+#: ../src/math-window.c:431
 msgid "_Quit"
 msgstr "_Phuma"
 
-#: ../src/math-window.c:443
+#: ../src/math-window.c:448
 msgid "_About"
 msgstr "_Nge"