Boost logo

Ublas :

From: Eddie Vedder (Eddie.Vedder_at_[hidden])
Date: 2005-12-20 03:38:26


> I think that the sign of the product of the diagonal elements of U
> depends on the number of row permutations in pivoting: if this number
> is even, product is equal to determinant, but if it is odd,
> product is -determinant.

Is there a way to find out the number of rows permutations in pivoting? Does
the pivot vector give any information about that? Or is this information
lost?

Ed

-- 
10 GB Mailbox, 100 FreeSMS/Monat http://www.gmx.net/de/go/topmail
+++ GMX - die erste Adresse für Mail, Message, More +++