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<?xml version="1.0" encoding="UTF-8"?>
<!--
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2006-2008 - INRIA
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
*
-->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" xml:lang="en" xml:id="systmat">
<refnamediv>
<refname>systmat</refname>
<refpurpose>system matrix</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>[Sm]=systmat(Sl);</synopsis>
</refsynopsisdiv>
<refsection>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term>Sl</term>
<listitem>
<para>
linear system (<literal>syslin</literal> list) or descriptor system
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Sm</term>
<listitem>
<para>matrix pencil</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
System matrix of the linear system <literal>Sl</literal> (<literal>syslin</literal> list)
in state-space form (utility function).
</para>
<programlisting role=""><![CDATA[
Sm = [-sI + A B;
[ C D]
]]></programlisting>
<para>
For a descriptor system (<literal>Sl=list('des',A,B,C,D,E)</literal>), <literal>systmat</literal> returns:
</para>
<programlisting role=""><![CDATA[
Sm = [-sE + A B;
[ C D]
]]></programlisting>
</refsection>
<refsection role="see also">
<title>See Also</title>
<simplelist type="inline">
<member>
<link linkend="ss2des">ss2des</link>
</member>
<member>
<link linkend="sm2des">sm2des</link>
</member>
<member>
<link linkend="sm2ss">sm2ss</link>
</member>
</simplelist>
</refsection>
</refentry>
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