Hello, Thanks for both replies. If I define FESystem<dim> fe (FE_Q<dim>(2), dim, FE_Q<dim>(1), 1); in a mesh with 10 nodes can I say that:

S[0] = u_x of node A S[1] = u_y of node A S[20] = T of node A S[2] = u_x of node B S[3] = u_y of node B S[21] = T of node B Generally I would like to find the corresponding U_x, u_y and T of a specific node. Thanks. Lisa On Thursday, October 13, 2016 at 10:32:20 PM UTC+2, Wolfgang Bangerth wrote: > > On 10/13/2016 05:05 AM, Lisa Collins wrote: > > > > Dealing with vector valued problems in deal ii is a bit confusing for > me. > > I have a question regarding the solution vector (S). > > If we have a problem with 20 nodes and 3 dofs per node (u_x , u_y , and > T > > temperature) can we always say that: > > > > S[0] = u_x of node A > > S[1] = u_y of node A > > S[2] = T of node A > > > > S[3] = u_x of node B > > S[4] = u_y of node B > > S[5] = T of node B > > In general, the answer is no. As Bruno pointed out, you can *enforce* that > in > some circumstances, but you should not make this assumption unless you > have > *explicitly* made sure that things are as you describe. > > Best > W. > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: bang...@colostate.edu > <javascript:> > www: http://www.math.colostate.edu/~bangerth/ > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.