<?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="intl" xml:lang="ja">

    <refnamediv>

        <refname>intl</refname>

        <refpurpose>コーシー積分</refpurpose>

    </refnamediv>

    <refsynopsisdiv>

        <title>呼び出し手順</title>

        <synopsis>[y]=intl(a,b,z0,r,f)</synopsis>

    </refsynopsisdiv>

    <refsection>

        <title>引数</title>

        <variablelist>

            <varlistentry>

                <term>z0</term>

                <listitem>

                    <para>複素数</para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>a, b</term>

                <listitem>

                    <para>実数</para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>r</term>

                <listitem>

                    <para>正の実数</para>

                </listitem>

            </varlistentry>

            <varlistentry>

                <term>f</term>

                <listitem>

                    <para>"外部" 関数</para>

                </listitem>

            </varlistentry>

        </variablelist>

    </refsection>

    <refsection>

        <title>説明</title>

        <para>

            <literal>f</literal> が複素数を値とする関数の場合,

            <literal>intl(a,b,z0,r,f)</literal> は

            <literal>a&lt;=t&lt;=b</literal>のもとで

            <literal>z0 + r.*exp(%i*t)</literal>で定義される複素平面における曲線

            (中心<literal>z0</literal>,半径<literal>r</literal>の円における

            位相が<literal>a</literal>と<literal>b</literal>の間となる部分)

            に沿った

            <literal>f(z)dz</literal>の積分を計算します.

        </para>

    </refsection>

    <refsection>

        <title>例</title>

        <programlisting role="example"><![CDATA[
function y=f(z)
  y = z^(3 + %pi * %i)
endfunction

intl(1,2,1+%i, 3, f)
 ]]></programlisting>

    </refsection>

    <refsection role="see also">

        <title>参照</title>

        <simplelist type="inline">

            <member>

                <link linkend="intc">intc</link>

            </member>

        </simplelist>

    </refsection>

</refentry>

