[SciPy-User] [SciPy-user] zplane function equivalent

ninjasmith henrylindsaysmith@gmail....
Thu Oct 1 11:52:07 CDT 2009


Hi,

I'm looking for a function that performs the equivalent of zplane in matlab. 
That is I have the coefficients of a filter and I would like to see the
poles and zeros plotted on the zplane.

anyone managed this before?  I guess I could find the roots myself and then
build a custom plot to do it but I'd rather not :)
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