Package for calculations and simplifications of expressions with Dirac matrices (MatrixExp)

Abstract This paper describes a package for calculations of expressions with Dirac matrices. Advantages over existing similar packages are described. MatrixExp package is intended for simplification of complex expressions involving γ-matrices, providing such tools as automatic Feynman parameterization, integration in d-dimensional space, sorting and grouping of results in a given order. Also, in comparison with the existing similar package Tracer, the presented package MatrixExp has more enhanced inpu... Title of program: MatrixExp Catalogue Id: ADWB_v1_0 Nature of problem Feynman diagram calculation, simplification of expressions with γ-matrixes. Versions of this program held in the CPC repository in Mendeley Data ADWB_v1_0; MatrixExp; 10.1016/j.cpc.2005.06.002 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)