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.


Wolfgang Bangerth          email:                 bange...@colostate.edu
                           www: http://www.math.colostate.edu/~bangerth/

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