* Bug 15891 fixed: [doc] matrix-wise trigo pages => subsection
[scilab.git] / scilab / modules / elementary_functions / help / ja_JP / trigonometry / cotd.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2
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17
18 <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="cotd" xml:lang="ja">
19
20     <refnamediv>
21
22         <refname>cotd</refname>
23
24         <refpurpose>コタンジェント(余接,引数の単位:度)</refpurpose>
25
26     </refnamediv>
27
28     <refsynopsisdiv>
29
30         <title>呼び出し手順</title>
31
32         <synopsis>y=cotd(x)</synopsis>
33
34     </refsynopsisdiv>
35
36     <refsection>
37
38         <title>引数</title>
39
40         <variablelist>
41
42             <varlistentry>
43
44                 <term>x</term>
45
46                 <listitem>
47
48                     <para>実数配列.</para>
49
50                 </listitem>
51
52             </varlistentry>
53
54             <varlistentry>
55
56                 <term>y</term>
57
58                 <listitem>
59
60                     <para>
61
62                         <varname>x</varname>と同じ次元の実数配列.
63
64                     </para>
65
66                 </listitem>
67
68             </varlistentry>
69
70         </variablelist>
71
72     </refsection>
73
74     <refsection>
75
76         <title>説明</title>
77
78         <para>
79
80             <varname>y</varname>のエントリは,<varname>x</varname>
81
82             (単位は度と仮定)
83
84             の対応するエントリのコタンジェント,
85
86             <code>t=cos(x)./sin(x)</code>となります.
87
88             整数<literal>n</literal>について<literal>n*180</literal>
89
90             に等しいエントリは無限大となります.
91
92             一方,<constant>%pi</constant>を正確に表現できないため,
93
94             <code>cotg(n*%pi)</code>は大きいですが有限となります.
95
96             エントリが整数で奇数の<literal>n</literal>について
97
98             <literal>n*90</literal>に
99
100             等しい場合,結果は厳密に<literal>0</literal>となります.
101
102         </para>
103
104     </refsection>
105
106     <refsection>
107
108         <title>例</title>
109
110         <programlisting role="example"><![CDATA[
111 x=[30 45 60 90];
112 cotd(x)
113  ]]></programlisting>
114
115     </refsection>
116
117     <refsection role="see also">
118
119         <title>参照</title>
120
121         <simplelist type="inline">
122
123             <member>
124
125                 <link linkend="cotg">cotg</link>
126
127             </member>
128
129         </simplelist>
130
131     </refsection>
132
133 </refentry>
134