[doc] comparisons page improved
[scilab.git] / scilab / modules / elementary_functions / help / pt_BR / trigonometry / matrix_wise / acoshm.xml
1 <?xml version="1.0" encoding="ISO-8859-1"?>
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16 <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="acoshm" xml:lang="pt">
17     <refnamediv>
18         <refname>acoshm</refname>
19         <refpurpose>arco-cosseno hiperbólico da matriz (matriz arco-cosseno
20             hiperbólico)
21         </refpurpose>
22     </refnamediv>
23     <refsynopsisdiv>
24         <title>Seqüência de Chamamento</title>
25         <synopsis>t=acoshm(x)</synopsis>
26     </refsynopsisdiv>
27     <refsection>
28         <title>Parâmetros</title>
29         <variablelist>
30             <varlistentry>
31                 <term>x,t</term>
32                 <listitem>
33                     <para>matriz quadrada de reais ou complexos</para>
34                 </listitem>
35             </varlistentry>
36         </variablelist>
37     </refsection>
38     <refsection>
39         <title>Descrição</title>
40         <para>acoshm é o arco-cosseno hiperbólico da matriz x (matriz arco-cosseno
41             hiperbólico). Usa a fórmula
42             <literal>t=logm(x+(x+eye())*sqrtm((x-eye())/(x+eye())))</literal> Para
43             matrizes não-simétricas, o resultado pode ser impreciso.
44         </para>
45     </refsection>
46     <refsection>
47         <title>Exemplos</title>
48         <programlisting role="example"><![CDATA[
49 A=[1,2;3,4];
50 coshm(acoshm(A))
51 A(1,1)=A(1,1)+%i;
52 coshm(acoshm(A))
53  ]]></programlisting>
54     </refsection>
55     <refsection>
56         <title>Ver Também </title>
57         <simplelist type="inline">
58             <member>
59                 <link linkend="acosh">acosh</link>
60             </member>
61             <member>
62                 <link linkend="logm">logm</link>
63             </member>
64             <member>
65                 <link linkend="sqrtm">sqrtm</link>
66             </member>
67         </simplelist>
68     </refsection>
69 </refentry>