Boost logo

Ublas :

From: Eddie Vedder (Eddie.Vedder_at_[hidden])
Date: 2005-12-19 10:36:34

> The determinant is
> usually computed from the LU factorization: compute the product of the
> diagonal of U and you have the determinant.

I computed the LU factorisation of the matrix with ATLAS bindings function
lu_factor(A,ipiv) where A holds the LU factorisation. The problem is, that
the product of the diagonal results in a determinant with wrong sign. I
found out, this has to do with the pivoting. How can I find out the correct
sign of the determinant?


10 GB Mailbox, 100 FreeSMS/Monat
+++ GMX - die erste Adresse für Mail, Message, More +++