<?xml version="1.0" encoding="UTF-8"?>
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 * Copyright (C) 2012 - 2016 - Scilab Enterprises
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 * 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,
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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: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="obsvss">
    <refnamediv>
        <refname>obsvss</refname>
        <refpurpose>observable part</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>Syntax</title>
        <synopsis>
            slo = obsvss(sl)
            [Ao, Bo, Co] = obsvss(A, B, C)
            .. = obsvss(.., tol)
        </synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>Arguments</title>
        <variablelist>
            <varlistentry>
                <term>A,B,C,Ao,Bo,Co</term>
                <listitem>
                    <para>real matrices</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>sl,slo</term>
                <listitem>
                    <para>
                        <literal>syslin</literal> lists
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>tol</term>
                <listitem>
                    <para>
                        real (threshold) (default value <literal>100*%eps</literal>)
                    </para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsection>
    <refsection>
        <title>Description</title>
        <para>
            <literal>slo=(Ao,Bo,Co)</literal> is the observable part of linear system <literal>sl=(A,B,C)</literal> (<literal>syslin</literal> list)
        </para>
        <para>
            <literal>tol</literal>  threshold to test controllability (see <literal>contr</literal>);
            default value = <literal>100*%eps</literal>
        </para>
    </refsection>
    <refsection role="see also">
        <title>See also</title>
        <simplelist type="inline">
            <member>
                <link linkend="contr">contr</link>
            </member>
            <member>
                <link linkend="contrss">contrss</link>
            </member>
            <member>
                <link linkend="obsv_mat">obsv_mat</link>
            </member>
            <member>
                <link linkend="obs_gram">obs_gram</link>
            </member>
        </simplelist>
    </refsection>
</refentry>
