Fastor : light-weight high performance tensor algebra framework ( https://github.com/romeric/Fastor )
blitz : Multi-dimensional array library for C++ ( https://github.com/blitzpp/blitz )
highwayhash : Fast strong hash functions: SipHash/HighwayHash ( https://github.com/google/highwayhash )
xor_singleheader : single header library for fast XOR filters ( https://github.com/FastFilter/xor_singleheader )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a science
For Paludis use this rsync : rsync://gentoo.zugaina.org/science-portage
If you have a problem : ycarus(-at-)zugaina.org