18b23453ce28e24a856894b21edfd72f0a4ef3d6
[scilab.git] / scilab / modules / graphics / help / en_US / plzr.xml
1 <?xml version="1.0" encoding="UTF-8"?>
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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="en" xml:id="plzr">
14     <refnamediv>
15         <refname>plzr</refname>
16         <refpurpose>pole-zero plot</refpurpose>
17     </refnamediv>
18     <refsynopsisdiv>
19         <title>Calling Sequence</title>
20         <synopsis>plzr(sl)</synopsis>
21     </refsynopsisdiv>
22     <refsection>
23         <title>Arguments</title>
24         <variablelist>
25             <varlistentry>
26                 <term>sl</term>
27                 <listitem>
28                     <para>
29                         list ( <literal>syslin</literal>)
30                     </para>
31                 </listitem>
32             </varlistentry>
33         </variablelist>
34     </refsection>
35     <refsection>
36         <title>Description</title>
37         <para>
38             produces a pole-zero plot of the linear system
39             <literal>sl</literal> (<literal>syslin</literal> list)
40         </para>
41     </refsection>
42     <!--  
43     <scilab:image localized="true">
44       s=poly(0,'s');
45       n=[1+s   2+3*s+4*s^2        5; 0        1-s             s];
46       d=[1+3*s   5-s^3           s+1;1+s     1+s+s^2      3*s-1];
47       h=syslin('c',n./d); 
48       plzr(h);
49     </scilab:image>
50 -->
51     <refsection>
52         <title>Examples</title>
53         <programlisting role="example"><![CDATA[ 
54 s=poly(0,'s');
55 n=[1+s   2+3*s+4*s^2        5; 0        1-s             s];
56 d=[1+3*s   5-s^3           s+1;1+s     1+s+s^2      3*s-1];
57 h=syslin('c',n./d); 
58 plzr(h);
59  ]]></programlisting>
60     </refsection>
61     <refsection role="see also">
62         <title>See Also</title>
63         <simplelist type="inline">
64             <member>
65                 <link linkend="trzeros">trzeros</link>
66             </member>
67             <member>
68                 <link linkend="roots">roots</link>
69             </member>
70             <member>
71                 <link linkend="syslin">syslin</link>
72             </member>
73         </simplelist>
74     </refsection>
75 </refentry>