hi everybody!
another question concerning the generic assembling procedures. i try to
assemble a volumic source term "integral grad(Ni).Ts", where Ni are the
basis functions of a scalar fem and Ts is a vectorial source term. so i
set up a mesh with a data-fem with "FEM_NEDELEC(3)" elements and a
"FEM_PK(3,1)" for setting the scalar basis functions.
then:
assemble_source_term.push_mi(im);
assemble_source_term.push_mf(mf_scalar);
assemble_source_term.push_mf(mf_Ts);
assemble_source_term.push_data(Ts); <- input data, length=dof of
the nedelec fem.
assemble_source_term.push_vec(result);
assemble_source_term.set("F=data(qdim(#1),#2);" "
V(#1)+=comp(Grad(#1).vBase(#2))(???????).F(???);");
assemble_source_term.assembly();
my problem is, i do not really understand the reduction operation
mentioned in the documentation, because i'm not familiar with tensor
notation. the examples i found in the tests folder just showed how to
handle something like "comp(Base(#1).vBase(#2))".
so how do i have to set these indices to get a result?
i hope i did a proper problem description and someone can help me.
best regards and thanks in advance, alex
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