scipy.signal.

zpk2ss

scipy.signal.zpk2ss(z, p, k)

Zero-pole-gain representation to state-space representation

Parameters:

z, psequence

Zeros and poles.

kfloat

System gain.

Returns:

A, B, C, Dndarray

State space representation of the system, in controller canonical form.

Notes

Array API Standard Support

zpk2ss has experimental support for Python Array API Standard compatible backends in addition to NumPy. Please consider testing these features by setting an environment variable SCIPY_ARRAY_API=1 and providing CuPy, PyTorch, JAX, or Dask arrays as array arguments. The following combinations of backend and device (or other capability) are supported.

Library	CPU	GPU
NumPy	✅	n/a
CuPy	n/a	⛔
PyTorch	⛔	⛔
JAX	⛔	⛔
Dask	⛔	n/a

See Support for the array API standard for more information.