Single Grid Arithmetic or Map Algebra

Edit menu submenus.

After changes, map will be redrawn.  This changes the values in the grid, but does not automatically save the changed grid, so if you want to keep the original grid, operate on a copy, or insure you save with a new name.  If you want to save the new grid, do so with the "File, Save DEM" menu choice.

Last revision 4/14/2022