Laplacian.derivative

Laplacian.derivative(point=None)

Return the derivative operator.

The Laplacian is usually linear, but in case the 'constant' pad_mode is used with nonzero pad_const, the derivative is given by the derivative with 0 pad_const.

Parameters:

pointdomain element, optional

The point to take the derivative in. Does not change the result since the operator is affine.