;GEOMETRIC MODELING COMMAND FILE. MN+GEOMED,; GEOMETRIC EDITOR. MN+GEMSUB,; ERROR - ARITH - III. MN+MEMIO,; MEMORY & INPUT-OUTPUT. ; MN+EULER,; EULER POLYHEDRON PRIMITIVES. MN+EUCLID,; EUCLIDEAN TRANSFORMATIONS. ; MN+VIEWER,; DISPLAY VIEW SUBROUTINES. MN+OCCULT,; HIDDEN LINE ELIMINATION. MN+BIN; BODY INTERSECTION.