<?xml version="1.0" encoding="UTF-8"?>
<!--
 * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
 * Copyright (C) 2016 - Serge STEER - INRIA
 * Copyright (C) 2012 - 2016 - Scilab Enterprises
 *
 * This file is hereby licensed under the terms of the GNU GPL v2.0,
 * pursuant to article 5.3.4 of the CeCILL v.2.1.
 * This file was originally licensed under the terms of the CeCILL v2.1,
 * and continues to be available under such terms.
 * For more information, see the COPYING file which you should have received
 * along with this program.
 *
 -->
<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="tf2zp">
    <refnamediv>
        <refname>tf2zp</refname>
        <refpurpose>SIMO transfer function to zero pole gain representation</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>Syntax</title>
        <synopsis>[z, p, k] = tf2zp(S)</synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>Arguments</title>
        <variablelist>
            <varlistentry>
                <term>S</term>
                <listitem>
                    <para>
                        a single input transfer function.
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>z</term>
                <listitem>
                    <para>
                        a matrix, the ith column contains the transmission zeros relative to the ith output.
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>p</term>
                <listitem>
                    <para>
                        a column vector, the poles of the system
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>k</term>
                <listitem>
                    <para>
                        a row vector, the ith element contains the gain  relative to the ith output.
                    </para>
                </listitem>
            </varlistentry>

        </variablelist>
    </refsection>
    <refsection>
        <title>Description</title>
        <para>
            Converts a SIMO transfer function into zero pole gain representation.
        </para>

    </refsection>
    <refsection>
        <title>Examples</title>
        <programlisting role="example"><![CDATA[
H=syslin("d",[45.76+6*%z+2*%z^2;0.64*%z],[23.28+3.1*%z+%z^2;23.28+3.1*%z+%z^2])
[z,p,k]=tf2zp(H)
 ]]></programlisting>
    </refsection>

    <refsection role="see also">
        <title>See Also</title>
        <simplelist type="inline">
            <member>
                <link linkend="ss2zp">ss2zp</link>
            </member>
            <member>
                <link linkend="zp2tf">zp2tf</link>
            </member>
        </simplelist>
    </refsection>
    <refsection role="history">
        <title>History</title>
        <revhistory>
            <revision>
                <revnumber>6.0</revnumber>
                <revdescription>
                    <para>Function added.</para>
                </revdescription>
            </revision>
        </revhistory>
    </refsection>

</refentry>
