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

    <info>
        <link type="guide" xref="index#equation"/>
    
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Vincent Renardias</mal:name>
      <mal:email>vincent@ldsol.com</mal:email>
      <mal:years>1998-2000.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Joaquim Fellmann</mal:name>
      <mal:email>joaquim@hrnet.fr</mal:email>
      <mal:years>2000.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Christophe Merlet</mal:name>
      <mal:email>redfox@redfoxcenter.org</mal:email>
      <mal:years>2000-2006.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Christophe Fergeau</mal:name>
      <mal:email>teuf@users.sourceforge.net</mal:email>
      <mal:years>2002-2003.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Sun G11n</mal:name>
      <mal:email>gnome_int_l10n@ireland.sun.com</mal:email>
      <mal:years>2002.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Robert-André Mauchin</mal:name>
      <mal:email>zebob.m@pengzone.org</mal:email>
      <mal:years>2006-2008.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Stéphane Raimbault</mal:name>
      <mal:email>stephane.raimbault@gmail.com</mal:email>
      <mal:years>2007.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Yannick Tailliez</mal:name>
      <mal:email>ytdispatch-libre@yahoo.com</mal:email>
      <mal:years>2008.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Claude Paroz</mal:name>
      <mal:email>claude@2xlibre.net</mal:email>
      <mal:years>2008-2010.</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Gérard Baylard</mal:name>
      <mal:email>gerard dot b at bbox dot fr</mal:email>
      <mal:years>2010</mal:years>
    </mal:credit>
  </info>

	<title>Fonctions</title>
    
    <p>
    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.
    </p>
    <example>
    <p>
    sin 30
    </p>
    <p>
    abs (5−9)
    </p>
    </example>
    <p>
    The following functions are defined.
    </p>
    <table>
    <tr>
    <td><p>abs</p></td>
    <td><p><link xref="absolute">Absolute Value</link></p></td>
    </tr>
    <tr>
    <td><p>cos</p></td>
    <td><p><link xref="trigonometry">Cosine</link></p></td>
    </tr>
    <tr>
    <td><p>cosh</p></td>
    <td><p><link xref="trigonometry">Hyperbolic Cosine</link></p></td>
    </tr>
    <tr>
    <td><p>erf</p></td>
    <td><p>Gauss Error function</p></td>
    </tr>
    <tr>
    <td><p>frac</p></td>
    <td><p>Partie fractionnaire</p></td>
    </tr>
    <tr>
    <td><p>int</p></td>
    <td><p>Partie entière</p></td>
    </tr>
    <tr>
    <td><p>ln</p></td>
    <td><p><link xref="logarithm">Natural Logarithm</link></p></td>
    </tr>
    <tr>
    <td><p>log</p></td>
    <td><p><link xref="logarithm">Logarithm</link></p></td>
    </tr>
    <tr>
    <td><p>not</p></td>
    <td><p><link xref="boolean">Boolean NOT</link></p></td>
    </tr>
    <tr>
    <td><p>ones</p></td>
    <td><p>Ones complement</p></td>
    </tr>
    <tr>
    <td><p>sin</p></td>
    <td><p><link xref="trigonometry">Sine</link></p></td>
    </tr>
    <tr>
    <td><p>sinh</p></td>
    <td><p><link xref="trigonometry">Hyperbolic Sine</link></p></td>
    </tr>
    <tr>
    <td><p>sqrt</p></td>
    <td><p><link xref="power">Square Root</link></p></td>
    </tr>
    <tr>
    <td><p>tan</p></td>
    <td><p><link xref="trigonometry">Tangent</link></p></td>
    </tr>
    <tr>
    <td><p>tanh</p></td>
    <td><p><link xref="trigonometry">Hyperbolic Tangent</link></p></td>
    </tr>
    <tr>
    <td><p>twos</p></td>
    <td><p>Twos complement</p></td>
    </tr>
    <tr>
    <td><p>zeta</p></td>
    <td><p>Riemann zeta function</p></td>
    </tr>
    </table>
    <p>
    <app>MATE Calculator</app> does not support user-defined functions.
    </p>
</page>
