00731nam0 2200241 450 00001893220081106115221.00-471-98353-520081106d1999----km-y0itay50------baengUSy-------001yyComputer algebra systemsa practical guideedited by Micheal J. WesterChichesterWiley1999XVI, 435 p.25 cmComputer algebra systems55388512.0220Algebra astrattaWester,Michael J.ITUNIPARTHENOPE20081106RICAUNIMARC000018932M 512.02/7M 1447DSA2008Computer algebra systems55388UNIPARTHENOPE