This is documentation for an old release of SciPy (version 0.10.0). Read this page Search for this page in the documentation of the latest stable release (version 1.15.1).

scipy.signal.zpk2tf

scipy.signal.zpk2tf(z, p, k)

Return polynomial transfer function representation from zeros and poles

Parameters :

z : ndarray

Zeros of the transfer function.

p : ndarray

Poles of the transfer function.

k : float

System gain.

Returns :

b : ndarray

Numerator polynomial.

a : ndarray

Denominator polynomial.