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<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
<MAN>
  <LANGUAGE>eng</LANGUAGE>
  <TITLE>plzr</TITLE>
  <TYPE>Scilab Function</TYPE>
  <DATE>April 1993</DATE>
  <SHORT_DESCRIPTION name="plzr"> pole-zero plot</SHORT_DESCRIPTION>
  <CALLING_SEQUENCE>
    <CALLING_SEQUENCE_ITEM>plzr(sl)   </CALLING_SEQUENCE_ITEM>
  </CALLING_SEQUENCE>
  <PARAM>
    <PARAM_INDENT>
      <PARAM_ITEM>
        <PARAM_NAME>sl</PARAM_NAME>
        <PARAM_DESCRIPTION>
          <SP>: list ( <VERB>syslin</VERB>)</SP>
        </PARAM_DESCRIPTION>
      </PARAM_ITEM>
    </PARAM_INDENT>
  </PARAM>
  <DESCRIPTION>
    <P>
    produces a pole-zero plot of the linear system
    <VERB>sl</VERB> (<VERB>syslin</VERB> list)</P>
  </DESCRIPTION>
  <EXAMPLE>
<![CDATA[
s=poly(0,'s');
n=[1+s   2+3*s+4*s^2        5; 0        1-s             s];
d=[1+3*s   5-s^3           s+1;1+s     1+s+s^2      3*s-1];
h=syslin('c',n./d); 
plzr(h);
 ]]>
  </EXAMPLE>
  <SEE_ALSO>
    <SEE_ALSO_ITEM>
      <LINK>trzeros</LINK>
    </SEE_ALSO_ITEM>
    <SEE_ALSO_ITEM>
      <LINK>roots</LINK>
    </SEE_ALSO_ITEM>
    <SEE_ALSO_ITEM>
      <LINK>syslin</LINK>
    </SEE_ALSO_ITEM>
  </SEE_ALSO>
</MAN>
