GRGA computer algebra system for differential geometry, gravitation and field theory. Version 3.1 works with PSL-based REDUCE 3.3 or 3.4. E-mail: V.V. Zhytnikov <[email protected]>.
Last updated: 1994-12-16
grep ♦ grey-scale ♦ Greystone Technologies ♦ GRG ♦ GRIB ♦ grick ♦ grilf
Try this search on Wikipedia, Wiktionary, Google, OneLook.