<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="guide" id="power" xml:lang="it">

  <info>

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

    <revision pkgversion="3.16" date="2015-02-21" status="candidate"/>

    <credit type="editor">

      <name>Ekaterina Gerasimova</name>

      <email its:translate="no">kittykat3756@gmail.com</email>

      <years>2015</years>

    </credit>

    <credit type="editor">

      <name>Sebastian Rasmussen</name>

      <email its:translate="no">sebras@gmail.com</email>

      <years>2015</years>

    </credit>

    <desc>Learn to enter roots and powers into the calculator.</desc>

    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">

      <mal:name>Paolo Stivanin</mal:name>

      <mal:email>paolostivanin@yahoo.it</mal:email>

      <mal:years>2010</mal:years>

    </mal:credit>

    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">

      <mal:name>Luca Ferretti</mal:name>

      <mal:email>lferrett@gnome.org</mal:email>

      <mal:years>2012</mal:years>

    </mal:credit>

  </info>

  <title>Powers and Roots</title>

  
Powers are entered by putting a <link xref="superscript">superscript

  number</link> after the value.

  <example>

    
5²

  </example>

  
The inverse of a number can be entered using the inverse symbol ⁻¹

  (<keyseq><key>Ctrl</key><key>I</key></keyseq>).

  <example>

    
3⁻¹

  </example>

  
Powers can also be calculated using the ^ symbol. This allows the power to

  be an equation.

  <example>

    
5^(6−2)

  </example>

  
If your keyboard does not have a <key>^</key> key you can use <key>*</key>

  twice.

  
Square roots can be calculated using the √ symbol

  (<keyseq><key>Ctrl</key><key>R</key></keyseq>).

  <example>

    
√2

  </example>

  
n-th roots can be calculated by putting a

  <link xref="superscript">subscript number</link> before the root sign.

  <example>

    
₃√2

  </example>

</page>