Facilities for General Relativity in Macsyma -------------------------------------------- Richard Petti Macsyma Inc. This presentation surveys facilities in Macsyma that are particularly useful for computations in general relativity. These include (1) indicial tensor analysis, including new capabilities for variational tensor calculus; (2) component tensor analysis; (3) frame fields including noncommuting frame derivatives; (4) general non-commuting derivatives outside the tensor packages; (5) affine torsion and conformal nonmetricity; (6) an algebraic tensor package; (7) ten executable demonstrations of computations with special and general relativity, including black holes, cosmological solutions, weak field approximations, and spin groups.