Calculation will run with almost 2-fold (Dual Core) or 4-fold (Quad-Core) the speed.
Calculation will run up to 16-fold the speed. (Requires multiple networked sufficient PCs; Special Installation knowledge required.)

Consecutive number of the coordinates. NR is just used internally. When inserting rows, the relation to the collectives will change.
The distance of the supporting points from the origin of a system of coordinates, which has been put in the terrain section arbitrarily, is to be entered in meters.