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

    <info>
        <link type="guide" xref="index#equation"/>
    <credit type="translator copyright"><name>Joan Duran</name><email>jodufi@gmail.com</email><years>2008</years></credit><credit type="translator copyright"><name>Sergi Morraja</name><email>sergi256@gmail.com</email><years>2011, 2012</years></credit><credit type="translator copyright"><name>Gil Forcada</name><email>gilforcada@guifi.net</email><years>2013</years></credit><credit type="translator copyright"><name>Miquel-Àngel Burgos i Fradeja</name><email>miquel.angel.burgos@gmail.com</email><years>2020</years></credit><credit type="translator copyright"><name>Victor Dargallo</name><email>victordargallo@disroot.org</email><years>2025</years></credit></info>

	<title>Trigonometria</title>
    
    <p>Es poden utilitzar les <link xref="function">funcions</link> trigonomètriques del sin, el cos i la tan.</p>
    <example>
    <p>sin 45</p>
    </example>
    <p>
    To change the angle units used, use one of the following methods:
    </p>
    <list>
    <item><p>Press the menu button in the top-right
    corner of the window and select <gui style="menuitem">Preferences</gui></p></item>
    <item><p>In <gui>advanced mode</gui> you can use the Rad/Grad/Deg toggle button
    to toggle between units</p></item>
    </list>
    <p>
    Trigonometry buttons are visible when in <link xref="mouse">Advanced mode</link>.
    </p>
    <p>Les funcions hiperbòliques estan disponibles afegint «h» al final d'una funció.</p>
    <example>
    <p>sinh 0.34</p>
    </example>
    <p>Les funcions inverses s'introdueixen utilitzant el símbol invers ⁻¹ (<keyseq><key>Ctrl</key><key>I</key></keyseq>) o utilitzant la forma «a» de la funció. Les dues funcions següents són equivalents.</p>
    <example>
    <p>sin⁻¹ 0.5</p>
    <p>asin 0.5</p>
    </example>   
    <p>Per a introduir el <link xref="variable">π</link> amb el teclat utilitzeu <keyseq><key>Ctrl</key><key>P</key></keyseq>.</p>
</page>
