<?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,
 * and continues to be available under such terms.
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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="ja" xml:id="nehari">
    <refnamediv>
        <refname>nehari</refname>
        <refpurpose>連続時間動的システムのネハリ近似</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>呼出し手順</title>
        <synopsis>[x]=nehari(R [,tol])</synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>引数</title>
        <variablelist>
            <varlistentry>
                <term>R</term>
                <listitem>
                    <para>
                        状態空間表現の連続時間線形動的システム
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>x</term>
                <listitem>
                    <para>
                        状態空間表現の連続時間線形動的システム
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>tol</term>
                <listitem>
                    <para>オプションの閾値, デフォルト値は 1e-6.</para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsection>
    <refsection>
        <title>説明</title>
        <para>
            <literal>[x]=nehari(R [,tol])</literal>
            は<literal>R</literal>のネハリ近似を返します.
        </para>
        <para>
            <literal>R</literal> = 状態空間表現の線形システム
            (<literal>syslin</literal>リスト).
        </para>
        <para>
            <literal>R</literal> は厳密にプロパーで <literal>- R~</literal> は安定です
            (すなわち <literal>R</literal> は反安定です).
        </para>
        <programlisting role=""><![CDATA[
|| R - X ||oo = min || R - Y ||oo
              Y in Hoo
 ]]></programlisting>
    </refsection>
    <refsection>
        <title>履歴</title>
        <revhistory>
            <revision>
                <revnumber>5.4.0</revnumber>
                <revremark>
                    <literal>Sl</literal>が
                    連続時間線形システムであることを確認するようになりました.
                    この修正は,この <ulink url="http://gitweb.scilab.org/?p=scilab.git;a=commit;h=3d7083daae3339813ba747c8adcda1f9599bb80d">コミット</ulink>により導入されました.
                </revremark>
            </revision>
        </revhistory>
    </refsection>
</refentry>
