scipy.signal.zpk2tf¶

scipy.signal.zpk2tf(z, p, k)[source]¶

Return polynomial transfer function representation from zeros and poles

Parameters:

Parameters:	z : array_like Zeros of the transfer function. p : array_like Poles of the transfer function. k : float System gain.
Returns:	b : ndarray Numerator polynomial coefficients. a : ndarray Denominator polynomial coefficients.

z : array_like

Zeros of the transfer function.

p : array_like

Poles of the transfer function.

k : float

System gain.

Returns:

b : ndarray

Numerator polynomial coefficients.

a : ndarray

Denominator polynomial coefficients.