How to get e = U - Uex? Is there a libmesh interface for that? --Junchao Zhang
On Tue, Jan 19, 2016 at 3:57 PM, David Knezevic <david.kneze...@akselos.com> wrote: > Assuming you've already assembled K, so you can just do a matvec > (SparseMatrix::vector_mult) followed by a dot product (NumericVector::dot). > > David > > > > On Tue, Jan 19, 2016 at 4:53 PM, Junchao Zhang <junchao.zh...@gmail.com> > wrote: > >> Hello, >> I want to compute e^TKe as a measure of the error of a solution. Here e >> = >> U - Uex, supposing I know the analytic answer to the PDE. >> How can I do it in libmesh? Is there an example? >> Thank you. >> >> --Junchao Zhang >> >> ------------------------------------------------------------------------------ >> Site24x7 APM Insight: Get Deep Visibility into Application Performance >> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >> Monitor end-to-end web transactions and take corrective actions now >> Troubleshoot faster and improve end-user experience. Signup Now! >> http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 >> _______________________________________________ >> Libmesh-users mailing list >> Libmesh-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/libmesh-users >> > > ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
