mjo@gentoo.org frp.bissey@gmail.com François Bissey proxy-maint@gentoo.org Proxy Maintainers sci-mathematics@gentoo.org Gentoo Mathematics Project The AClib package contains a library of almost crystallographic groups and a some algorithms to compute with these groups. A group is called almost crystallographic if it is finitely generated nilpotent-by-finite and has no non-trivial finite normal subgroups. gap-packages/aclib