<?xml version="1.0" encoding="UTF-8"?>

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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:ns5="http://www.w3.org/1999/xhtml"
          xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook"
          xmlns:scilab="http://www.scilab.org" xml:id="zeros" xml:lang="ja">

    <refnamediv>

        <refname>zeros</refname>

        <refpurpose>ゼロからなる行列</refpurpose>

    </refnamediv>

    <refsynopsisdiv>

        <title>呼び出し手順</title>

        <synopsis>y=zeros()

            y=zeros(x)

            y=zeros(m1,m2,..)

        </synopsis>

    </refsynopsisdiv>

    <refsection>

        <title>引数</title>

        <variablelist>

            <varlistentry>

                <term>x,y</term>

                <listitem>

                    <para>行列</para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>m1, m2,..</term>

                <listitem>

                    <para>整数</para>

                </listitem>

            </varlistentry>

        </variablelist>

    </refsection>

    <refsection>

        <title>説明</title>

        <para>

            ゼロ行列を作成します (<literal>0*ones</literal>と等価).

        </para>

        <variablelist>

            <varlistentry>

                <term>zeros(m1,m2)</term>

                <listitem>

                    <para>

                        <literal>(m1,m2)</literal> 行列の場合.

                    </para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>zeros(m1,m2,..,mn)</term>

                <listitem>

                    <para>

                        ゼロで埋めた <literal>(m1,m2,..,mn)</literal> 行列を作成します.

                    </para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>zeros(A)</term>

                <listitem>

                    <para>

                        <literal>A</literal>の同じ大きさの行列.

                    </para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>zeros(3)</term>

                <listitem>

                    <para>

                        は<literal>a=3</literal>と指定した<literal>zeros(a)</literal>

                        となり, すなわち, 3x3 行列とはなりません!

                    </para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>zeros()</term>

                <listitem>

                    <para>単一のゼロを返します</para>

                </listitem>

            </varlistentry>

        </variablelist>
        <note>
           <literal>repmat(0, sizes)</literal> can be used to generate an array of zeros with
           <literal>sizes=[m1 m2 ..]</literal> given as a vector.
        </note>

        <para>

            <literal>x</literal> が <literal>syslin</literal> リスト

            (状態空間または伝達関数の線形システム)の場合でも,

            <literal>zeros(x)</literal> は有効で,ゼロ行列を返します.

        </para>

    </refsection>

    <refsection>

        <title>例</title>

        <programlisting role="example"><![CDATA[
zeros(3)
zeros(3,3)
zeros(2,3,2)

repmat(0, [2 4 2])
 ]]></programlisting>

    </refsection>

    <refsection role="see also">

        <title>参照</title>

        <simplelist type="inline">

            <member>

                <link linkend="eye">eye</link>

            </member>

            <member>

                <link linkend="ones">ones</link>

            </member>

            <member>

                <link linkend="spzeros">spzeros</link>

            </member>
            <member>
                <link linkend="signed_zero">-0</link>
            </member>

        </simplelist>

    </refsection>

</refentry>

