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<?xml version="1.0" encoding="UTF-8"?>
<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="rowregul">
<refnamediv>
<refname>rowregul</refname>
<refpurpose>removing poles and zeros at infinity</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>[Stmp,Ws]=rowregul(Sl,alfa,beta)</synopsis>
</refsynopsisdiv>
<refsection>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term>Sl,Stmp</term>
<listitem>
<para>
<literal>syslin</literal> lists
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>alfa,beta</term>
<listitem>
<para>real numbers (new pole and zero positions)</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
computes a postfilter <literal>Ws</literal> such that <literal>Stmp=Ws*Sl</literal> is proper and
with full rank <literal>D</literal> matrix.
</para>
<para>
Poles at infinity of <literal>Sl</literal> are moved to <literal>alfa</literal>;
</para>
<para>
Zeros at infinity of <literal>Sl</literal> are moved to <literal>beta</literal>;
</para>
<para>
<literal>Sl</literal> is assumed to be a right invertible linear system (<literal>syslin</literal> list)
in state-space representation with possibly a polynomial <literal>D</literal> matrix.
</para>
<para>
This function is the dual of colregul (see function code).
</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
s=%s;
w=[1/s,0;s/(s^3+2),2/s];
Sl=tf2ss(w);
[Stmp,Ws]=rowregul(Sl,-1,-2);
Stmp('D') // D matrix of Stmp
clean(ss2tf(Stmp))
]]></programlisting>
</refsection>
<refsection role="see also">
<title>See Also</title>
<simplelist type="inline">
<member>
<link linkend="invsyslin">invsyslin</link>
</member>
<member>
<link linkend="colregul">colregul</link>
</member>
</simplelist>
</refsection>
</refentry>
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