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+<page xmlns="http://projectmallard.org/1.0/"
+ type="guide"
+ id="equation">
+
+ <info>
+ <!-- Place this at the start of the section -->
+ <title type="sort">0</title>
+ <link type="guide" xref="index#equation"/>
+ </info>
+
+ <title>Basic Equations</title>
+
+ <p>
+ Equations are entered in standard mathematical form.
+ For example to add 7 and 2 enter the following:
+ </p>
+ <example>
+ <p>
+ 7+2
+ </p>
+ </example>
+ <p>
+ To solve, press the <gui>=</gui> button with your mouse or the <key>Enter</key> key on your keyboard.
+ </p>
+ <p>
+ 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).
+ </p>
+ <example>
+ <p>
+ 7−3×2
+ </p>
+ </example>
+ <p>
+ To change the order of calculation use parenthesis.
+ The following equation solves to 8 (7−3 = 4, 4×2 = 8).
+ </p>
+ <example>
+ <p>
+ (7−3)×2
+ </p>
+ </example>
+ <p>
+ To clear the display press the <gui>Clr</gui> button or <key>Escape</key>.
+ </p>
+</page>