hom4ps-bin : HOMotopy method for solving Polynomial Systems ( http://www.math.nsysu.edu.tw/~leetsung/works/HOM4PS_soft_files/HOM4PS_Linux.htm )
rngstreams : Multiple independent streams of pseudo-random numbers ( https://statmath.wu.ac.at/software/RngStreams/ )
unuran : Universal Non-Uniform Random number generator ( https://statmath.wu.ac.at/unuran/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a hep-forge
For Paludis use this rsync : rsync://gentoo.zugaina.org/hep-forge-portage
If you have a problem : ycarus(-at-)zugaina.org