Elsevier Science Home
Computer Physics Communications Program Library
Full text online from Science Direct
Programs in Physics & Physical Chemistry
CPC Home

[Licence| Download | New Version Template] aetc_v1_0.tar.gz(712 Kbytes)
Manuscript Title: CHAPLIN - Complex Harmonic Polylogarithms in Fortran
Authors: Stephan Buehler, Claude Duhr
Program title: Chaplin
Catalogue identifier: AETC_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 185(2014)2703
Programming language: Fortran 77.
Computer: Computing systems on which Fortran 77 compilers are available.
Operating system: Operating systems on which Fortran 77 compilers are available.
Keywords: Harmonic polylogarithms, Fortran, Loop computations.
PACS: 12.38.Bx.
Classification: 11.1.

Nature of problem:
Numerical evaluation of harmonic polylogarithms.

Solution method:
Inside the unit circle: series expansion. Outside the unit circle: inversion relations.

Only harmonic polylogarithms up to weight four are supported.

Unusual features:
Allows the evaluation of HPL's numerically for any point in the complex plane.

Running time:
Depending on the weight vector and argument of the HPL, between 0.2 and 400 μs.