* Bug 15891 fixed: [doc] matrix-wise trigo pages => subsection
[scilab.git] / scilab / modules / elementary_functions / help / ja_JP / trigonometry / asec.xml
1 <?xml version="1.0" encoding="utf-8"?>
2 <!--
3  * Ajouter ici d'éventuels commentaires sur le fichier XML
4 -->
5 <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="asec" xml:lang="ja">
6     <refnamediv>
7         <refname>asec</refname>
8         <refpurpose>引数の要素毎の逆割線を計算する.</refpurpose>
9     </refnamediv>
10     <refsynopsisdiv>
11         <title>呼び出し手順</title>
12         <synopsis>y = asec(x)</synopsis>
13     </refsynopsisdiv>
14     <refsection>
15         <title>引数</title>
16         <variablelist>
17             <varlistentry>
18                 <term>x</term>
19                 <listitem>
20                     <para>実数または複素数配列.</para>
21                 </listitem>
22             </varlistentry>
23             <varlistentry>
24                 <term>y</term>
25                 <listitem>
26                     <para>実数または複素数配列.</para>
27                 </listitem>
28             </varlistentry>
29         </variablelist>
30     </refsection>
31     <refsection>
32         <title>説明</title>
33         <para>
34             引数の要素毎の逆割線を計算します. 絶対値が 1 より大きい
35             実数の引数の場合, 結果は実数になります.
36         </para>
37         <para>
38             以下の等式が満たされます: <code>asec(z) == -acsc(-z) == asin(1/z) == %pi/2-asec(x) == %i*acsch(%i*z)</code>
39         </para>
40     </refsection>
41     <refsection>
42         <title>サンプル</title>
43         <scilab:image>
44             x=linspace(1,20,200);
45             x=[-x($:-1:1) %nan x];
46             plot(x,asec(x))
47         </scilab:image>
48     </refsection>
49     <refsection>
50         <title>例</title>
51         <programlisting role="example"><![CDATA[
52 x=[1 2 -2 sqrt(2) -sqrt(2) 2/sqrt(3) -2/sqrt(3) -1];
53 asec(x)/%pi
54  ]]></programlisting>
55     </refsection>
56     <refsection role="see also">
57         <title>参照</title>
58         <simplelist type="inline">
59             <member>
60                 <link linkend="asecd">asecd</link>
61             </member>
62             <member>
63                 <link linkend="sec">sec</link>
64             </member>
65             <member>
66                 <link linkend="secd">secd</link>
67             </member>
68         </simplelist>
69     </refsection>
70     <refsection>
71         <title>参考文献</title>
72         <simplelist type="vert">
73             <member>Kahan, W., "Branch cuts for complex elementary functions, or,
74                 Much ado about nothing's sign bit", Proceedings of the joing IMA/SIAM
75                 conference on The State of the Art in Numerical Analysis, University of
76                 Birmingham, A. Iserles and M.J.D. Powell, eds, Clarendon Press, Oxford,
77                 1987, 165-210.
78             </member>
79         </simplelist>
80     </refsection>
81 </refentry>