Hi I used MatrixCreator::create_mass_matrix to create a mass_matrix but I want he result in a TrilinosWrappers::SparseMatrix.
So far, using a TrilinosWrappers::SparseMatrix as an argument to create_mass_matrix throws up: error: no matching function for call to 'dealii::MatrixCreator::create_mass_matrix(dealii::DoFHandler<1>&, dealii::QGauss<1>, dealii::TrilinosWrappers::SparseMatrix&)' Using the copy_from function throws up: no matching function for call to 'dealii::TrilinosWrappers::SparseMatrix::copy_from(dealii::SparseMatrix<double>&)' /Users/tedkord/deal.II/lac/include/lac/trilinos_sparse_matrix.h:1464:12: note: candidate is: void dealii::TrilinosWrappers::SparseMatrix::copy_from(const dealii::TrilinosWrappers::SparseMatrix&) How can I do this without having to create the mass matrix myself? Ted P.S: I also have the same issues with create_laplace_matrix.
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