fips.linalg.LinearOperator.logdet

LinearOperator.logdet()

Return the logarithm of the determinant, for a symmetric positive-definite form.

A dense form takes it from its Cholesky factor, a diagonal one from its entries, a block diagonal one block by block, a sparse one from its LU factors, and a Kronecker one that holds its whole product from the factors (any other dense).

Returns:

log(det(A)).

Return type:

float

Raises:

numpy.linalg.LinAlgError – If the form is not positive-definite (a diagonal or Cholesky factor with an entry that is not positive).