Glossary - L

All terms beginning with the letter 'L' are shown below:

Laplacian: the Laplacian of a scalar field \[ \nabla^2 f = \nabla \bullet \left( \nabla f \right) = \frac{\partial^2 f}{\partial x^2} + \frac{\partial^2 f}{\partial y^2} + \frac{\partial^2 f}{\partial z^2} \] is a scalar field that gives the local curvature.
Tensors: ????
Tensor fields: ?????