Computes the determinant (or its logarithm) of a Matrix from its Schur
decomposition.
USAGE:
det.schur.Matrix(x, logarithm=T)
REQUIRED ARGUMENTS:
x:
an object of class "schur.Matrix" representing the Schur decomposition of a
matrix.
OPTIONAL ARGUMENTS:
logarithm:
a logical variable indicating whether or not the logarithm of the modulus of
the determinant should be returned rather than the determinant itself.
The default is to return the logarithm.
VALUE:
returns an object of class "det".
REFERENCES:
Golub, G., and Van Loan, C. F. (1989).
Matrix Computations,
2nd edition, Johns Hopkins, Baltimore.