macsyma (project macâs symbolic manipulator) is a computer algebra system that was originally developed from 1968 to 1982 at mit as part of project mac and later marketed commercially. it was the first comprehensive symbolic mathematics system and one of the earliest knowledge based systems; many of its ideas were later adopted by mathematica, maple, and other systems. ==development== the project was initiated in july, 1968 by carl engelman , william a. martin (front end, expression display, polynomial arithmetic) and joel moses (simplifier, indefinite integration: heuristic/risch). bill martin was in charge of the project until 1971, and moses ran it for the next decade. engelman and his staff left in 1969 to return to the mitre corporation.. see also  later major contributors to the core mathematics engine were: yannis avgoustis (special functions), david barton (algsys), richard bogen (special functions), bronstein (power series, number theory, special functions, functional equations, pattern matching, sign queries), bill dubuque (limits, grobner, triangsys, indefinite integration), richard fateman (rational functions, pattern matching, arbitrary precision floating-point), michael genesereth (comparison, knowledge database), jeff golden (simplifier, language, system), r. w. gosper (definite summation, special functions, simplification, number theory), charles karney (plotting), john kulp, ed lafferty (ode solution, special functions), stavros macrakis (real/imaginary parts, compiler, system), richard pavelle (indicial tensor calculus, general relativity package, ordinary and partial differential equations), barry trager (algebraic integration, factoring, grobner), paul wang (polynomial factorization, limits, definite integration), david y. y. yun, gail zacharias (grobner), and rich zippel (power series, polynomial factorization, number theory, combinatorics). macsyma was written in maclisp, and was, in some cases, a key motivator for improving that dialect of lisp in the areas of numerical computing, efficient compilation and language design. maclisp itself ran primarily on pdp-6 and pdp-10 computers, but also on the multics os and on the lisp machine architectures. macsyma was one of th
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