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scipy.signal.cheby2

scipy.signal.cheby2(N, rs, Wn, btype='low', analog=0, output='ba')

Chebyshev type I digital and analog filter design.

Description:

Design an Nth order lowpass digital or analog Chebyshev type I filter and return the filter coefficients in (B,A) or (Z,P,K) form.

See also cheb2ord.