Recategorize some files
[scilab.git] / scilab / modules / elementary_functions / help / ja_JP / elementarymatrices / empty.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <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="empty">
3     <refnamediv>
4         <refname>empty</refname>
5         <refpurpose>([]) 空行列</refpurpose>
6     </refnamediv>
7     <refsection>
8         <title>説明</title>
9         <para>
10             <literal> [] </literal> は空行列を定義します. 
11             この行列は特殊な行列として定義され,
12             0行0列,すなわち<literal> size([]) =[0,0] </literal>となります.
13             以下の便利な表記が使用可能です:
14         </para>
15         <para>
16             <literal> [] * A = A * [] = [] </literal>
17         </para>
18         <para>
19             <literal> [] + A = A + [] = []</literal>
20         </para>
21         <para>
22             [ [], A] = [A, []] = A
23             <literal> inv([]) =[] </literal>
24         </para>
25         <para>
26             <literal> det([])=cond([])=rcond([])=1, rank([])=0</literal>
27         </para>
28         <para>
29             明示的な答えがない場合,行列関数は <literal>[]</literal> またはエラーメッセージを
30             返します. 空の線形システム
31             (<literal> syslin</literal> リスト) は複数の行または列を有する可能性があります.
32         </para>
33     </refsection>
34     <refsection>
35         <title>例s</title>
36         <programlisting role="example"><![CDATA[ 
37 s=poly(0,'s'); A = [s, s+1]; 
38 A+[], A*[]
39 A=rand(2,2); AA=A([],1), size(AA)
40 svd([])
41 w=ssrand(2,2,2); wr=[]*w; size(wr), w1=ss2tf(wr), size(w1)
42  ]]></programlisting>
43     </refsection>
44     <refsection role="see also">
45         <title>参照</title>
46         <simplelist type="inline">
47             <member>
48                 <link linkend="matrices">matrices</link>
49             </member>
50             <member>
51                 <link linkend="poly">poly</link>
52             </member>
53             <member>
54                 <link linkend="string">string</link>
55             </member>
56             <member>
57                 <link linkend="boolean">boolean</link>
58             </member>
59             <member>
60                 <link linkend="rational">rational</link>
61             </member>
62             <member>
63                 <link linkend="syslin">syslin</link>
64             </member>
65         </simplelist>
66     </refsection>
67 </refentry>