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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/linear/rref.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>rref</TITLE>
 
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  <TYPE>Scilab Function</TYPE>
 
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  <DATE>April 1993</DATE>
 
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  <SHORT_DESCRIPTION name="rref"> computes  matrix row echelon form by lu transformations</SHORT_DESCRIPTION>
 
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  <CALLING_SEQUENCE>
 
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    <CALLING_SEQUENCE_ITEM>R=rref(A)  </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>:  m x n matrix with scalar entries</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>R</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>:  m x n matrix,row echelon form of a</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><VERB>rref</VERB> computes the row echelon form of the given matrix by left lu
 
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    decomposition. If ones need the transformation used just call
 
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    <VERB>X=rref([A,eye(m,m)])</VERB> the row echelon form <VERB>R</VERB> is <VERB>X(:,1:n)</VERB> and
 
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    the left transformation <VERB>L</VERB> is given by <VERB>X(:,n+1:n+m)</VERB> such as <VERB>L*A=R</VERB></P>
 
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  </DESCRIPTION>
 
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  <EXAMPLE>
 
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<![CDATA[
 
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A=[1 2;3 4;5 6];
 
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X=rref([A,eye(3,3)]);
 
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R=X(:,1:2)
 
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L=X(:,3:5);L*A
 
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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>lu</LINK>
 
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    </SEE_ALSO_ITEM>
 
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    <SEE_ALSO_ITEM>
 
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      <LINK>qr</LINK>
 
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    </SEE_ALSO_ITEM>
 
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  </SEE_ALSO>
 
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</MAN>