Homological Algebra Programming

Version 1.58
Released 2023-08-06

This project is maintained by Graham Ellis

GAP Package HAP

This package provides some functions for group cohomology and algebraic topology.

The current version of this package is version 1.58, released on 2023-08-06. For more information, please refer to the package manual. There is also a README file.


This package requires GAP version >= 4.5.6

The following other GAP packages are needed:

The following additional GAP packages are not required, but suggested:


Graham Ellis.


Please, cite this package as

[Ell23] Ellis, G., HAP, Homological Algebra Programming, Version 1.58 (2023)
(Refereed GAP package), https://gap-packages.github.io/hap.

You can get more info by typing Cite("HAP"); in the gap prompt.


For bug reports, feature requests and suggestions, please use the issue tracker.