<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?> 
<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
<MAN>
  <LANGUAGE>fr</LANGUAGE>
  <TITLE>tril  </TITLE>
  <TYPE>Scilab Function  </TYPE>
  <DATE>April 1993  </DATE>
  <SHORT_DESCRIPTION name="tril"> partie triangulaire inférieure d&apos;une matrice  </SHORT_DESCRIPTION>
  <CALLING_SEQUENCE>
  <CALLING_SEQUENCE_ITEM>tril(x [,k])  </CALLING_SEQUENCE_ITEM>
  </CALLING_SEQUENCE>
  <PARAM>
 <PARAM_INDENT>
  <PARAM_ITEM>
  <PARAM_NAME>x  </PARAM_NAME>
  <PARAM_DESCRIPTION>
  <SP>
    : matrice de tout type
</SP>
  </PARAM_DESCRIPTION> 
  </PARAM_ITEM>
  <PARAM_ITEM>
  <PARAM_NAME>k  </PARAM_NAME>
  <PARAM_DESCRIPTION>
  <SP>
    : entier (0 par défaut)
</SP>
  </PARAM_DESCRIPTION> 
  </PARAM_ITEM>
 </PARAM_INDENT>
  </PARAM>
  <DESCRIPTION>
  <P>
    Partie triangulaire inférieure d&apos;une matrice.
    <VERB>tril(x,k)</VERB> est composée des termes sous une diagonale :
    k&gt;0 (diagonale supérieure) et k&lt;0 (diagonale sous la diagonale principale).
  </P>
  </DESCRIPTION>
  <EXAMPLE><![CDATA[
s=poly(0,'s');
tril([s,s;s,1])
tril([1/s,1/s;1/s,1])
 ]]></EXAMPLE>
  <SEE_ALSO>
    <SEE_ALSO_ITEM> <LINK>triu</LINK> </SEE_ALSO_ITEM>     <SEE_ALSO_ITEM> <LINK>ones</LINK> </SEE_ALSO_ITEM>     <SEE_ALSO_ITEM> <LINK>eye</LINK> </SEE_ALSO_ITEM>     <SEE_ALSO_ITEM> <LINK>diag</LINK> </SEE_ALSO_ITEM>
  </SEE_ALSO>
</MAN>
