Improve the help page of derivat
[scilab.git] / scilab / modules / polynomials / help / pt_BR / derivat.xml
1 <?xml version="1.0" encoding="ISO-8859-1"?>
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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: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="derivat" xml:lang="en">
14     <refnamediv>
15         <refname>derivat</refname>
16         <refpurpose>derivada de matriz de razões de polinômios</refpurpose>
17     </refnamediv>
18     <refsynopsisdiv>
19         <title> Seqüência de Chamamento </title>
20         <synopsis>pd=derivat(p)</synopsis>
21     </refsynopsisdiv>
22     <refsection>
23         <title>Parâmetros</title>
24         <variablelist>
25             <varlistentry>
26                 <term>p</term>
27                 <listitem>
28                     <para>matriz de polinômios ou de razões de polinômios</para>
29                 </listitem>
30             </varlistentry>
31         </variablelist>
32     </refsection>
33     <refsection>
34         <title>Descrição</title>
35         <para>Computa a derivada da matriz de polinômios ou de funções racionais
36             em relação à variável livre.
37         </para>
38     </refsection>
39     <refsection>
40         <title>Exemplos</title>
41         <programlisting role="example"><![CDATA[
42 s=poly(0,'s');
43 derivat(1/s)  // -1/s^2;
44  ]]></programlisting>
45         <programlisting role="example"><![CDATA[
46 p1 = poly([1 -2 1], 'x', 'coeff')
47 derivat(p1)
48  ]]></programlisting>
49         <programlisting role="example"><![CDATA[
50 p2 = poly([1 -4 2], 'y', 'coeff')
51 derivat(p2)
52  ]]></programlisting>
53         <programlisting role="example"><![CDATA[
54 p3 = poly(ones(1, 10), 'z', 'coeff')
55 derivat(p3)
56  ]]></programlisting>
57         <programlisting role="example"><![CDATA[
58 p4 = poly([-1 1], 't', 'roots')
59 derivat(p4)
60  ]]></programlisting>
61         <programlisting role="example"><![CDATA[
62 s = %s; p5 = s^{-1} + 2 + 3*s
63 derivat(p5)
64  ]]></programlisting>
65     </refsection>
66 </refentry>