<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" type="guide" id="power" lang="en-GB">

    <info>
        <link type="guide" xref="index#equation"/>
    </info>

	<title>Powers and Roots</title>
    
    <p>Powers are entered by putting a <link xref="superscript">superscript number</link> after the value.</p>
    <example>
    <p>5²</p>
    </example>
    <p>The inverse of a number can be entered using the inverse symbol ⁻¹ (<keyseq><key>Ctrl</key><key>I</key></keyseq>).</p>
    <example>
    <p>3⁻¹</p>
    </example>
    <p>Powers can also be calculated using the ^ symbol. This allows the power to be an equation.</p>
    <example>
    <p>5^(6−2)</p>
    </example>
    <p>If your keyboard does not have a <key>^</key> key you can use <key>*</key> twice.</p>
    <p>Square roots can be calculated using the symbol (<keyseq><key>Ctrl</key><key>R</key></keyseq>).</p>
    <example>
    <p>√2</p>
    </example>
    <p>n-th roots can be calculated by putting a <link xref="superscript">subscript number</link> before the root sign.</p>
    <example>
    <p>₃√2</p>
    </example>
</page>
