Massive indent of all codes:
[scilab.git] / scilab / modules / sparse / help / ja_JP / decomposition / spchol.xml
1         <?xml version="1.0" encoding="UTF-8"?>
2     <!--
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12  -->
13     <refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" xml:lang="ja" xml:id="spchol">
14         <refnamediv>
15             <refname>spchol</refname>
16             <refpurpose>疎行列コレスキー分解</refpurpose>
17         </refnamediv>
18         <refsynopsisdiv>
19             <title>呼び出し手順</title>
20             <synopsis>[R,P] = spchol(X)</synopsis>
21         </refsynopsisdiv>
22         <refsection>
23             <title>パラメータ</title>
24             <variablelist>
25                 <varlistentry>
26                     <term>X</term>
27                     <listitem>
28                         <para>対称正定実疎行列</para>
29                     </listitem>
30                 </varlistentry>
31                 <varlistentry>
32                     <term>P</term>
33                     <listitem>
34                         <para>順列行列</para>
35                     </listitem>
36                 </varlistentry>
37                 <varlistentry>
38                     <term>R</term>
39                     <listitem>
40                         <para>コレスキー分解</para>
41                     </listitem>
42                 </varlistentry>
43             </variablelist>
44         </refsection>
45         <refsection>
46             <title>説明</title>
47             <para>
48                 <literal>[R,P] = spchol(X)</literal> は,
49                 <literal>P*R*R'*P' = X</literal>となるような
50                 上三角行列<literal>R</literal> を出力します.
51             </para>
52         </refsection>
53         <refsection>
54             <title>例</title>
55             <programlisting role="example"><![CDATA[ 
56 X=[
57 3.,  0.,  0.,  2.,  0.,  0.,  2.,  0.,  2.,  0.,  0. ;
58 0.,  5.,  4.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0. ;
59 0.,  4.,  5.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0. ;
60 2.,  0.,  0.,  3.,  0.,  0.,  2.,  0.,  2.,  0.,  0. ;
61 0.,  0.,  0.,  0. , 5.,  0.,  0.,  0.,  0.,  0.,  4. ;
62 0.,  0.,  0.,  0.,  0.,  4.,  0.,  3.,  0.,  3.,  0. ;
63 2.,  0.,  0.,  2.,  0.,  0.,  3.,  0.,  2.,  0.,  0. ;
64 0.,  0.,  0.,  0.,  0.,  3.,  0.,  4.,  0.,  3.,  0. ;
65 2.,  0.,  0.,  2.,  0.,  0.,  2.,  0.,  3.,  0.,  0. ;
66 0.,  0.,  0.,  0.,  0.,  3.,  0.,  3.,  0.,  4.,  0. ;
67 0.,  0.,  0.,  0.,  4.,  0.,  0.,  0.,  0.,  0.,  5.];
68 X=sparse(X);[R,P] = spchol(X);
69 max(P*R*R'*P'-X)
70  ]]></programlisting>
71         </refsection>
72         <refsection role="see also">
73             <title>参照</title>
74             <simplelist type="inline">
75                 <member>
76                     <link linkend="sparse">sparse</link>
77                 </member>
78                 <member>
79                     <link linkend="lusolve">lusolve</link>
80                 </member>
81                 <member>
82                     <link linkend="luget">luget</link>
83                 </member>
84                 <member>
85                     <link linkend="chol">chol</link>
86                 </member>
87             </simplelist>
88         </refsection>
89     </refentry>