====== Grid Math ======

(Select two 2D or 3D grid files with identical geometry)

Use this operation to do a simple mathematical operation using two grids. The operation is done node by node, but only when both grids are not blank. Use the "Switch" button to swap grid 1 and grid 2.

__Sum:__ Simply adds the value in grid 1 to grid 2.\\
__Difference:__ Subtracts grid 2 from grid 1\\
__Division:__ Divides grid 1 with grid 2\\
__Multiplication:__ Multiplies grid 1 with grid 2