Scilab Function
Last update : 28/12/2008
sgrid - s-plane grid lines.
Calling Sequence
- sgrid()
- sgrid('new')
- sgrid(zeta,wn [,color])
Description
Used in conjonction with evans,
plots lines of constant damping ratio (zeta)
and natural frequency (wn).
-
sgrid(): add a grid over an existing continuous s-plane root with default values for zeta and wn.
-
sgrid('new'): clears the graphic screen and then plots a default s-plane grid
-
sgrid(zeta,wn [,color]): same as sgrid() but uses the provided damping ratio and natural frequency.
Examples
H=syslin('c',352*poly(-5,'s')/poly([0,0,2000,200,25,1],'s','c'));
evans(H,100)
sgrid()
sgrid(0.6,2,7)
See Also
evans,