Method mult

python/dolfinx/la/__init__.py:164–175

Compute ``y += Ax`` or ``y += A^T x``. Args: x: Input Vector y: Output Vector transpose: if True, compute y += A^T x

(self, x: Vector[Scalar], y: Vector[Scalar], transpose: bool = False)

        return self._cpp_object.index_map(i)

    def mult(self, x: Vector[Scalar], y: Vector[Scalar], transpose: bool = False) -> None:
        """Compute ``y += Ax`` or ``y += A^T x``.

        Args:
            x: Input Vector
            y: Output Vector
            transpose: if True, compute y += A^T x
        """
        if transpose:
            self._cpp_object.multT(x._cpp_object, y._cpp_object)
        else:
            self._cpp_object.mult(x._cpp_object, y._cpp_object)

    def matmul(self, B):
        """Compute matrix product ``A * B``, where `A` is this matrix.