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# scipy.signal.ss2zpk

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

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

  Inputs:

  > A, B, C, D – state-space matrices. input – for multiple-input systems, the input to use.

  Outputs:

  > z, p, k – zeros and poles in sequences and gain constant.

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