Re: [ublas] ublas::symmetric_marix and potrs for equation solving for positive definite matrices

From: Gunter Winkler (guwi17_at_[hidden])
Date: 2007-03-01 09:06:19

On Thursday 01 March 2007 13:52, Karl Meerbergen wrote:
> potrf and potrs require a dense matrix.
> symmetric_matrix has a packed format. The same issue was discussed
> earlier this week.

I added this to the FAQ section
http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Frequently_Asked_Questions_Using_UBLAS

@Preben:

Some BLAS-implementations (atlas?) provide packed versions of the usual blas. 
So you should try

tpsv or something similar.

mfg
Gunter