`numpy.linalg:det`

Signature

def det ( a )

Compute the determinant of an array.

Broadcasting rules apply, see the numpy.linalg documentation for details.

The determinant is computed via LU factorization using the LAPACK routine z/dgetrf.

The determinant of a 2-D array [[a, b], [c, d]] is ad - bc:

import numpy as np
a = np.array([[1, 2], [3, 4]])

✓

np.linalg.det(a)

✗

Computing determinants for a stack of matrices:

a = np.array([ [[1, 2], [3, 4]], [[1, 2], [2, 1]], [[1, 3], [3, 1]] ])
a.shape
np.linalg.det(a)

✓