skrf.mathFunctions.is_positive_definite¶
- skrf.mathFunctions.is_positive_definite(mat, tol=1e-12)[source]¶
Tests mat for positive definiteness.
Verifying that (1) mat is symmetric (2) it’s possible to compute the Cholesky decomposition of mat.
- Parameters
mat (npy.ndarray) – Matrix to test for positive definiteness
tol (float, optional) – Absolute tolerance. Defaults to
ALMOST_ZERO
- Returns
res
- Return type
bool or array of bool
See also