cupy.linalg.slogdet¶
-
cupy.linalg.
slogdet
(a)[source]¶ Returns sign and logarithm of the determinant of an array.
It calculates the natural logarithm of the determinant of a given value.
Parameters: a (cupy.ndarray) – The input matrix with dimension (..., N, N)
.Returns: It returns a tuple (sign, logdet)
.sign
represents each sign of the determinant as a real number0
,1
or-1
. ‘logdet’ represents the natural logarithm of the absolute of the determinant. If the determinant is zero,sign
will be0
andlogdet
will be-inf
. The shapes of bothsign
andlogdet
are equal toa.shape[:-2]
.Return type: tuple of ndarray
See also