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[scilab.git] / scilab / modules / elementary_functions / help / en_US / trigonometry / matrix_wise / atanm.xml
1 <?xml version="1.0" encoding="UTF-8"?>
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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="atanm" xml:lang="en">
17     <refnamediv>
18         <refname>atanm</refname>
19         <refpurpose>square matrix tangent inverse</refpurpose>
20     </refnamediv>
21     <refsynopsisdiv>
22         <title>Syntax</title>
23         <synopsis>[t]=atanm(x)</synopsis>
24     </refsynopsisdiv>
25     <refsection>
26         <title>Arguments</title>
27         <variablelist>
28             <varlistentry>
29                 <term>x</term>
30                 <listitem>
31                     <para>a real or complex square matrix.</para>
32                 </listitem>
33             </varlistentry>
34             <varlistentry>
35                 <term>t</term>
36                 <listitem>
37                     <para>a real or complex square matrix.</para>
38                 </listitem>
39             </varlistentry>
40         </variablelist>
41     </refsection>
42     <refsection>
43         <title>Description</title>
44         <para>
45             <code>atanm(x)</code> is the matrix arctangent of the matrix
46             <varname>x</varname>. Result may be not reliable if <varname>x</varname> is not
47             symmetric.
48         </para>
49     </refsection>
50     <refsection>
51         <title>Examples</title>
52         <programlisting role="example"><![CDATA[
53 tanm(atanm([1,2;3,4]))
54  ]]></programlisting>
55     </refsection>
56     <refsection role="see also">
57         <title>See also</title>
58         <simplelist type="inline">
59             <member>
60                 <link linkend="atan">atan</link>
61             </member>
62             <member>
63                 <link linkend="tanm">tanm</link>
64             </member>
65         </simplelist>
66     </refsection>
67 </refentry>