I have just uploaded on sourceforge the SLIFIS library, a long-standing project on which I can say I have spend quite some time... It is a C++ library designed to be used inside scientific software when you need some fuzzy logic stuff (membership functions, fuzzy inference system, ...)
It all started in 2008-2009, when I was in that situation, and had trouble finding what would fit my needs. Since then, the software was more or less in a standby situation, but I fixed some stuff recently, and decided to make a public release. A lot of things still need to be worked on, I hope to clean up things a bit and will keep an eye on this.
Checkout the (reduced) doc here, and the download project page is here.
At present, Windows build is not up to date, as Linux is now my main dev platform, but it shouldn't be too hard to make it work.
As usual with open source, absolutely no warranty is given..., blah blah blah.
Feedback is welcome.
