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

    <info>
        <link type="guide" xref="index#equation"/>
    <credit type="translator copyright"><name>Irapuan Pascoal</name><email>irapuan.menezes@gmail.com</email><years>2007</years></credit><credit type="translator copyright"><name>Georges Basile Stavracas Neto</name><email>georges.stavracas@gmail.com</email><years>2013</years></credit><credit type="translator copyright"><name>Lucas Romero de Abreu</name><email>lucasdeabreu@gmail.com</email><years>2013</years></credit><credit type="translator copyright"><name>Enrico Nicoletto</name><email>liverig@gmail.com</email><years>2013</years></credit><credit type="translator copyright"><name>Rafael Fontenelle</name><email>rafaelff@gnome.org</email><years>2013, 2014, 2017</years></credit><credit type="translator copyright"><name>Felipe Braga</name><email>fbobraga@gmail.com</email><years>2015</years></credit></info>

	<title>Trigonometria</title>
    
    <p>Cálculos trigonométricos podem ser efetuados usando as <link xref="function">funções</link> de sin, cos, e tan.</p>
    <example>
    <p>sin 45</p>
    </example>
    <p>
    To change the angle units used, press the menu button in the top-right
    corner of the window and select <gui style="menuitem">Preferences</gui>.
    Trigonometry buttons are visible when in <link xref="mouse">Advanced mode</link>.
    </p>
    <p>As funções hiperbólicas ficam disponíveis ao adicionar "h" ao final de uma função.</p>
    <example>
    <p>sinh 0,34</p>
    </example>
    <p>As funções inversas são inseridas tanto usando o simbolo inverso ⁻¹ (<keyseq><key>Ctrl</key><key>I</key></keyseq>) quanto usando a forma de função "a". As duas equações a seguir são equivalentes.</p>
    <example>
    <p>sin⁻¹ 0,5</p>
    <p>asin 0,5</p>
    </example>   
    <p>Para inserir o <link xref="variable">π</link> através do teclado, use <keyseq><key>Ctrl</key><key>P</key></keyseq>.</p>
</page>
