<?xml version="1.0" encoding="UTF-8"?>
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<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="en">
    <refnamediv>
        <refname>coshm</refname>
        <refpurpose>matrix hyperbolic cosine</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>Syntax</title>
        <synopsis>t = coshm(x)</synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>Arguments</title>
        <variablelist>
            <varlistentry>
                <term>x, t</term>
                <listitem>
                    <para>real or complex square matrices.</para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsection>
    <refsection>
        <title>Description</title>
        <para>
            <code>coshm</code> is the matrix hyperbolic cosine of the matrix <varname>x</varname>.
            <code>t=(expm(x)+expm(-x))/2</code>. Result may be inaccurate for
            nonsymmetric matrix.
        </para>
    </refsection>
    <refsection>
        <title>Examples</title>
        <programlisting role="example"><![CDATA[
A=[1,2;2,4]
acoshm(coshm(A))
 ]]></programlisting>
    </refsection>
    <refsection role="see also">
        <title>See also</title>
        <simplelist type="inline">
            <member>
                <link linkend="cosh">cosh</link>
            </member>
            <member>
                <link linkend="expm">expm</link>
            </member>
        </simplelist>
    </refsection>
</refentry>
