File: zgrid.cat

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scilab 2.4-1
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zgrid(1)                       Scilab Function                       zgrid(1)
NAME
  zgrid - zgrid plot

CALLING SEQUENCE
  zgrid()

DESCRIPTION
  plots z-plane grid lines: lines of constant damping factor (zeta) and
  natural frequency (Wn) are drawn in within the unit Z-plane circle.

  Iso-frequency curves are shown in frequency*step on the interval [0,0.5].
  Upper limit corresponds to Shannon frequency ( 1/dt > 2*f ).

SEE ALSO
  frep2tf, freson