Right... But if you think about a 2D element with local dofs as numbered
here

3  ------------ 2
   |           |
   |           |
0 ------------- 1


If the side between dof 2 and 3 is on the boundary, in that loop I don't
think you should be adding to Ke(0,0), right? But you will be. Or have I
completely over thought this?





On Tue, Mar 10, 2009 at 12:54 PM, John Peterson <jwpeter...@gmail.com>wrote:

> On Tue, Mar 10, 2009 at 11:51 AM, Andrea Hawkins <andjhawk...@gmail.com>
> wrote:
> > Hello-
> >
> > In looking at the examples that include boundary integration, I just had
> a
> > question of how something is working.
> >
> > For discussion I will consider example 5. The loops for test and trial
> > functions run over i,j=0 to phi_face.size() which makes sense, but I'm
> > wondering about the value being added to Ke(i,j) and Fe(i) as I wouldn't
> > think the element dof corresponds to the side-trial function number. Is
> > there something that happens in fe_face->reinit() or something?
>
> All the same basis functions and numbering are used, the quadrature
> rule is changed (I think!)
>
> --
> John
>
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