scipy.signal.ss2zpk#
- scipy.signal.ss2zpk(A, B, C, D, input=0)[source]#
State-space representation to zero-pole-gain representation.
A, B, C, D defines a linear state-space system with p inputs, q outputs, and n state variables.
- Parameters:
- Aarray_like
State (or system) matrix of shape
(n, n)- Barray_like
Input matrix of shape
(n, p)- Carray_like
Output matrix of shape
(q, n)- Darray_like
Feedthrough (or feedforward) matrix of shape
(q, p)- inputint, optional
For multiple-input systems, the index of the input to use.
- Returns:
- z, psequence
Zeros and poles.
- kfloat
System gain.