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    <font face="Courier New">Dear all,<br>
      <br>
      I need to filter a signal whose Z transfer function has been
      created through syslin from the numerator and denominator
      polynomials (not sure if this step is necessary).<br>
      <br>
      Should I use flts or filter?<br>
      <br>
      I don't quite grasp the difference, perhaps somebody can enlighten
      me.<br>
      <br>
      Regards,<br>
      <br>
      Federico Miyara   <br>
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