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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.

  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.`

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