mxnet.np.linalg.det¶
-
det
(a)¶ Compute the determinant of an array.
- Parameters
a ((.., M, M) ndarray) – Input array to compute determinants for.
- Returns
det – Determinant of a.
- Return type
(..) ndarray
Notes
Broadcasting rules apply, see the numpy.linalg documentation for details. The determinant is computed via LU factorization using the LAPACK routine z/dgetrf.
Examples
The determinant of a 2-D array [[a, b], [c, d]] is ad - bc: >>> a = np.array([[1, 2], [3, 4]]) >>> np.linalg.det(a) -2.0
Computing determinants for a stack of matrices: >>> a = np.array([ [[1, 2], [3, 4]], [[1, 2], [2, 1]], [[1, 3], [3, 1]] ]) >>> a.shape (3, 2, 2)
>>> np.linalg.det(a) array([-2., -3., -8.])
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