File: zgrid.cat

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scilab 2.6-4
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zgrid            Scilab Group            Scilab Function              zgrid
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