SciPy

scipy.signal.zpk2tf

scipy.signal.zpk2tf(z, p, k)[source]

Return polynomial transfer function representation from zeros and poles

Parameters
zarray_like

Zeros of the transfer function.

parray_like

Poles of the transfer function.

kfloat

System gain.

Returns
bndarray

Numerator polynomial coefficients.

andarray

Denominator polynomial coefficients.

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