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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
changed configure.in to build scilab's own malloc.o, closes: #255869

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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>zpbutt</TITLE>
 
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  <TYPE>Scilab Function</TYPE>
 
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  <DATE>April 1993</DATE>
 
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  <SHORT_DESCRIPTION name="zpbutt"> Butterworth analog filter</SHORT_DESCRIPTION>
 
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  <CALLING_SEQUENCE>
 
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    <CALLING_SEQUENCE_ITEM>[pols,gain]=zpbutt(n,omegac)  </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>n</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: integer (filter order)</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>omegac</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: real (cut-off frequency in Hertz)</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>pols</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: resulting poles of filter</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>gain</PARAM_NAME>
 
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        <PARAM_DESCRIPTION>
 
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          <SP>: resulting gain of filter</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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    computes the poles of a Butterworth analog
 
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    filter of order <VERB>n</VERB> and cutoff frequency omegac
 
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    transfer function H(s) is calculated by <VERB>H(s)=gain/real(poly(pols,'s'))
 
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</VERB></P>
 
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  </DESCRIPTION>
 
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  <AUTHOR>F. Delebecque INRIA</AUTHOR>
 
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</MAN>