H1-P0 FEM

Hi Christopher！

In my code， I have to use the space with dirichelet bounary
V = NumberSpace(mesh, dirichlet=[1,2,3,4)
,It's still usable in my code, But I think it's strange. because the trial function is only 0, namely V=0 .

Many thanks
Yongbin Han

Hi Yongbin,

using a NumberSpace together with Dirichlet boundaries does not make sense to me. The NumberSpace gives a singe scalar unknown (1 dof). If this scalar is then constrained to be zero at the boundary, it will simply be zero and there are no free dofs left over.

Best wishes,
Henry

Hi，Hvwahl！

Thank you very much！

Yongbin Han