Method A

python/dolfinx/fem/petsc.py:1378–1380

Jacobian matrix.

(self)

    @property
    def A(self) -> PETSc.Mat:  # type: ignore[name-defined]
        """Jacobian matrix."""
        return self._A

    @property
    def P_mat(self) -> PETSc.Mat | None:  # type: ignore[name-defined]