Dear deal.ii-users,
i want to use create_boundary_mass_matrix but i don't know how to use typename
FunctionMap< dim >::type.
In the documentation i found following statement:
The create_boundary_mass_matrix() creates the matrix with entries $m_{ij} =
\int_{\Gamma} \phi_i \phi_j dx$, where $\Gamma$ is the union of boundary parts
with indicators contained in a FunctionMap passed to the function (i.e. if you
want to set up the mass matrix for the parts of the boundary with indicators
zero and 2, you pass the function a map of unsigned chars as parameter
boundary_functions containing the keys zero and 2).
I think i need same help with the FunctionMap couse i don't now how to use it
here.
Thanks in advance.
Natalie
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Dr. Sebastian M. Schmidt
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