diagonal.hpp File Reference

#include <expected>
#include <span>
#include "serif/backend/mfem/solver/preconditioner/inverse.hpp"

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Namespaces
namespace	serif
namespace	serif::solver
namespace	serif::solver::preconditioner
namespace	serif::solver::preconditioner::backend
namespace	serif::solver::preconditioner::backend::mfem

Functions
std::expected< Inverse, Failure >	serif::solver::preconditioner::backend::mfem::try_diagonal_inverse (std::span< const double > diagonal)
	Own the reciprocal of every finite nonzero entry, including signed diagonals.