CHAPLIN—Complex Harmonic Polylogarithms in Fortran

Abstract We present a new Fortran library to evaluate all harmonic polylogarithms up to weight four numerically for any complex argument. The algorithm is based on a reduction of harmonic polylogarithms up to weight four to a minimal set of basis functions that are computed numerically using series expansions allowing for fast and reliable numerical results. Title of program: Chaplin Catalogue Id: AETC_v1_0 Nature of problem Numerical evaluation of harmonic polylogarithms. Versions of this program held in the CPC repository in Mendeley Data AETC_v1_0; Chaplin; 10.1016/j.cpc.2014.05.022 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)