constraints.add_line(u_i[i]);
constraints.add_line(v_i[i]);
You can only set a constraint for one of the two. Given the next line, I think
you want to set the constraint for u_i[i], but not v_i[i].
constraints.add_entry(u_i[i],v_i[i],0.5);
constraints.set_inhomogeneity(u_i[i],-0.5);
These two lines then look correct.
Does that make sense?
Best
WB
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Wolfgang Bangerth email: [email protected]
www: http://www.math.colostate.edu/~bangerth/
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