dolfinx.fem.petsc ================= .. automodule:: dolfinx.fem.petsc .. rubric:: Functions .. autosummary:: create_vector create_vector_block create_vector_nest create_matrix create_matrix_block create_matrix_nest assemble_vector assemble_vector_nest assemble_vector_block assemble_matrix assemble_matrix_nest assemble_matrix_block apply_lifting apply_lifting_nest set_bc set_bc_nest discrete_gradient interpolation_matrix .. rubric:: Classes .. autosummary:: LinearProblem NonlinearProblem