<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
<MAN>
  <LANGUAGE>eng</LANGUAGE>
  <TITLE>linf</TITLE>
  <TYPE>Scilab Function</TYPE>
  <DATE>April 1993</DATE>
  <SHORT_DESCRIPTION name="linf"> infinity norm</SHORT_DESCRIPTION>
  <CALLING_SEQUENCE>
    <CALLING_SEQUENCE_ITEM>linf(g [,eps],[tol])   </CALLING_SEQUENCE_ITEM>
  </CALLING_SEQUENCE>
  <PARAM>
    <PARAM_INDENT>
      <PARAM_ITEM>
        <PARAM_NAME>g</PARAM_NAME>
        <PARAM_DESCRIPTION>
          <SP>: is a <VERB>syslin</VERB> linear system.</SP>
        </PARAM_DESCRIPTION>
      </PARAM_ITEM>
      <PARAM_ITEM>
        <PARAM_NAME>eps</PARAM_NAME>
        <PARAM_DESCRIPTION>
          <SP>: is error tolerance on n.</SP>
        </PARAM_DESCRIPTION>
      </PARAM_ITEM>
      <PARAM_ITEM>
        <PARAM_NAME>tol</PARAM_NAME>
        <PARAM_DESCRIPTION>
          <SP>: threshold for imaginary axis poles.</SP>
        </PARAM_DESCRIPTION>
      </PARAM_ITEM>
    </PARAM_INDENT>
  </PARAM>
  <DESCRIPTION>
    <P>
    returns the L_infinity norm of <VERB>g</VERB>.</P>
    <VERBATIM>
<![CDATA[
    n=sup [sigmax(g(jw)] 
       w
   ]]>
    </VERBATIM>
    <P>
    (sigmax largest singular value).</P>
  </DESCRIPTION>
  <SEE_ALSO>
    <SEE_ALSO_ITEM>
      <LINK>h_norm</LINK>
    </SEE_ALSO_ITEM>
    <SEE_ALSO_ITEM>
      <LINK>linfn</LINK>
    </SEE_ALSO_ITEM>
  </SEE_ALSO>
</MAN>
