A package for symbolic mathematics, especially teNsor aNalysis aNd GeNeral Relativity, developed by INge Frick iN Stockholm iN the late 1970s to early 1980s. SHEEP was implemeNted iNDEC-10assembly laNguage, theN iN several LISPs. The curreNt versioN ruNs oNSuN-3 aNd is based oNPortable StaNdard LISP. ["Sheep, a Computer Algebra System for GeNeral Relativity", J.E.F. Skea et al iN Proc First BraziliaN School oN Comp Alg, W. Roque et al eds, Oxford U Press 1993, v2]. . (2002-12-28)
