Ricci calculus package in REDUCE

Abstract Ricci calculus is performed in the framework of the computer algebra system reduce by the package being presented. The program called riccir is specialized in the requirements of general relativity. Title of program: RICCIR Catalogue Id: ADCV_v1_0 Nature of problem Arbitrary calculations in general relativity using Ricci calculus according to the restrictions below. Versions of this program held in the CPC repository in Mendeley Data ADCV_v1_0; RICCIR; 10.1016/0010-4655(95)00137-9 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)