* Bug 15891 fixed: [doc] matrix-wise trigo pages => subsection
[scilab.git] / scilab / modules / elementary_functions / help / fr_FR / trigonometry / matrix_wise / coshm.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns5="http://www.w3.org/1999/xhtml" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" xml:id="coshm" xml:lang="fr">
3     <refnamediv>
4         <refname>coshm</refname>
5         <refpurpose>cosinus hyperbolique matriciel</refpurpose>
6     </refnamediv>
7     <refsynopsisdiv>
8         <title>Séquence d'appel</title>
9         <synopsis>t=coshm(x)</synopsis>
10     </refsynopsisdiv>
11     <refsection>
12         <title>Paramètres</title>
13         <variablelist>
14             <varlistentry>
15                 <term>x,t</term>
16                 <listitem>
17                     <para>matrice carrée réelle ou complexe</para>
18                 </listitem>
19             </varlistentry>
20         </variablelist>
21     </refsection>
22     <refsection>
23         <title>Description</title>
24         <para>coshm est le cosinus hyperbolique matriciel de la matrice x.
25             <literal>t=(expm(x)+expm(-x))/2</literal>. Le résultat peut être imprécis
26             pour les matrices non symétriques.
27         </para>
28     </refsection>
29     <refsection>
30         <title>Exemples</title>
31         <programlisting role="example"><![CDATA[
32 A=[1,2;2,4]
33 acoshm(coshm(A))
34  ]]></programlisting>
35     </refsection>
36     <refsection role="see also">
37         <title>Voir aussi</title>
38         <simplelist type="inline">
39             <member>
40                 <link linkend="cosh">cosh</link>
41             </member>
42             <member>
43                 <link linkend="expm">expm</link>
44             </member>
45         </simplelist>
46     </refsection>
47 </refentry>