On Tue, Jan 17, 2012 at 06:16, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> Not unless you formulate A^T A which doubles the condition number. Jack pointed out my typo, of course this *squares* the condition number (not a good idea unless your coarse level is quite well-conditioned). -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120117/e002050c/attachment.htm>
