<?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>