Aycil,
Hi, I am a new user and I want to find out whether I can use deal.ii to solve
a 2D problem where there are two unknowns; a scalar function of x,y and a
scalar function of only x. I would like to initialize these as a vector and my
test functions will have the same structure.
Is it possible to declare this using FESystem and FE_Q?
I want to use a very simple mesh
GridGenerator::hyper_rectangle (triangulation,
Point<2>(0,-0.05),
Point<2>(1,0.05));
and I thought
fe (FE_Q<dim>(1), 1,
FE_Q<dim-1, dim>(1), 1),
may work but I am not sure whether I understood dim and spacedim correctly.
Can this be done with the same triangulation for both unknowns?
No. You can only use FE_Q<N,M> on a DoFHandler<N,M> that needs to live on a
Triangulation<N,M>.
I don't think I know what you want to do. Can you explain what PDE you're
trying to solve and why you want to mix 2d and 1d things?
Best
W.
--
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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