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# scipy.signal.ss2zpk

`scipy.signal.``ss2zpk`(A, B, C, D, input=0)

  State-space representation to zero-pole-gain representation.

  Parameters : | A, B, C, D : ndarray State-space representation of linear system. input : int, optional For multiple-input systems, the input to use.
  Returns : | z, p : sequence Zeros and poles. k : float System gain.

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