* Bug #13810 fixed - householder(v, k*v) returned column of %nan. Input parameters...
[scilab.git] / scilab / modules / linear_algebra / help / pt_BR / proj.xml
1 <?xml version="1.0" encoding="ISO-8859-1"?>
2 <!--
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12  * For more information, see the COPYING file which you should have received
13  * along with this program.
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16 <refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns4="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="proj" xml:lang="en">
17     <refnamediv>
18         <refname>proj</refname>
19         <refpurpose>projeção</refpurpose>
20     </refnamediv>
21     <refsynopsisdiv>
22         <title>Seqüência de Chamamento</title>
23         <synopsis>P = proj(X1,X2)</synopsis>
24     </refsynopsisdiv>
25     <refsection>
26         <title>Parâmetros</title>
27         <variablelist>
28             <varlistentry>
29                 <term>X1,X2</term>
30                 <listitem>
31                     <para>duas matrizes reais com igual número de colunas</para>
32                 </listitem>
33             </varlistentry>
34             <varlistentry>
35                 <term>P</term>
36                 <listitem>
37                     <para>
38                         matriz de projeção de real (<literal>P^2=P</literal>)
39                     </para>
40                 </listitem>
41             </varlistentry>
42         </variablelist>
43     </refsection>
44     <refsection>
45         <title>Descrição</title>
46         <para>
47             <literal>P</literal> é a projeção sobre <literal>X2</literal>
48             paralela a <literal>X1</literal>.
49         </para>
50     </refsection>
51     <refsection role="see also">
52         <title>Ver Também</title>
53         <programlisting role="example"><![CDATA[ 
54 X1=rand(5,2);X2=rand(5,3);
55 P=proj(X1,X2);
56 norm(P^2-P,1)
57 trace(P)    // Este é dim(X2)
58 [Q,M]=fullrf(P);
59 svd([Q,X2])   // span(Q) = span(X2)
60  ]]></programlisting>
61     </refsection>
62     <refsection role="see also">
63         <title>See Also</title>
64         <simplelist type="inline">
65             <member>
66                 <link linkend="projspec">projspec</link>
67             </member>
68             <member>
69                 <link linkend="orth">orth</link>
70             </member>
71             <member>
72                 <link linkend="fullrf">fullrf</link>
73             </member>
74         </simplelist>
75     </refsection>
76 </refentry>