1. Extra Simple PaScal. SubSet of PaScal. 2. Econometric Software Package. StatiStical analySiS of time SerieS. "Econometric Software Package, USer' S Manual", J.P. Cooper, Graduate School of BuSineSS, U Chicago. Sammet 1978. 3. Extended Self-containing Prolog. 4. An early Symbolic mathematicSSyStem. [A. Rom, CeleSt Mech 3:331-345 (1971)]. (1994-12-08)