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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2005-01-09 22:58:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050109225821-473xr8vhgugxxx5j
Tags: 3.0-12
http://bugs.debian.org/255869
changed configure.in to build scilab's own malloc.o, closes: #255869

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man/eng/programming/poly.xml
 
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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
 
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<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
 
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<MAN>
 
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  <LANGUAGE>eng</LANGUAGE>
 
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  <TITLE>poly</TITLE>
 
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  <TYPE>Scilab Function</TYPE>
 
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  <DATE>April 1993</DATE>
 
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  <SHORT_DESCRIPTION name="poly"> polynomial definition</SHORT_DESCRIPTION>
 
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  <CALLING_SEQUENCE>
 
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    <CALLING_SEQUENCE_ITEM>[p]=poly(a,&quot;x&quot;, [&quot;flag&quot;])  </CALLING_SEQUENCE_ITEM>
 
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  </CALLING_SEQUENCE>
 
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  <PARAM>
 
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    <PARAM_INDENT>
 
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      <PARAM_ITEM>
 
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        <PARAM_NAME>a</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: matrix or real number</SP>
 
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        </PARAM_DESCRIPTION>
 
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      </PARAM_ITEM>
 
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      <PARAM_ITEM>
 
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        <PARAM_NAME>x</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: symbolic variable</SP>
 
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        </PARAM_DESCRIPTION>
 
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      </PARAM_ITEM>
 
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      <PARAM_ITEM>
 
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        <PARAM_NAME>&quot;flag&quot;  </PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: string (&quot;roots&quot;, &quot;coeff&quot;), default value is &quot;roots&quot;.</SP>
 
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        </PARAM_DESCRIPTION>
 
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      </PARAM_ITEM>
 
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    </PARAM_INDENT>
 
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  </PARAM>
 
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  <DESCRIPTION>
 
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    <P>
 
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    If <VERB>a</VERB> is a matrix, <VERB>p</VERB> is the characteristic polynomial i.e.
 
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     <VERB>determinant(x*eye()-a)</VERB>, <VERB>x</VERB> being the symbolic variable.</P>
 
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    <P>
 
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    If <VERB>v</VERB>  is a vector, <VERB>poly(v,&quot;x&quot;,[&quot;roots&quot;])</VERB>  is the polynomial
 
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    with <VERB>roots</VERB> the entries of <VERB>v</VERB> and <VERB>&quot;x&quot;</VERB> as formal variable.
 
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    (In this case,  <VERB>roots</VERB> and   <VERB>poly</VERB> are inverse functions).</P>
 
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    <P><VERB>poly(v,&quot;x&quot;,&quot;coeff&quot;)</VERB> creates the polynomial with symbol <VERB>&quot;x&quot;</VERB>
 
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    and with coefficients the entries of <VERB>v</VERB> (v(1) is the constant term of the polynomial). (Here <VERB>poly</VERB> and <VERB>coeff</VERB>
 
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    are inverse functions).</P>
 
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    <P><VERB>s=poly(0,&quot;s&quot;)</VERB> is the seed for defining polynomials with symbol
 
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    <VERB>&quot;s&quot;</VERB>.</P>
 
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  </DESCRIPTION>
 
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  <EXAMPLE>
 
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<![CDATA[
 
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s=poly(0,"s");p=1+s+2*s^2;
 
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A=rand(2,2);poly(A,"x")
 
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 ]]>
 
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  </EXAMPLE>
 
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  <SEE_ALSO>
 
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    <SEE_ALSO_ITEM>
 
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      <LINK>coeff</LINK>
 
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    </SEE_ALSO_ITEM>
 
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    <SEE_ALSO_ITEM>
 
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      <LINK>matrices</LINK>
 
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    </SEE_ALSO_ITEM>
 
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    <SEE_ALSO_ITEM>
 
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      <LINK>rational</LINK>
 
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    </SEE_ALSO_ITEM>
 
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  </SEE_ALSO>
 
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</MAN>