fuzzylib
fuzzylib is a software library for fuzzy arithmetics and algebra developed as a part of my master thesis and as a part of DECERNS project. It allows to describe any kinds of fuzzy numbers (singleton, trapezoidal, piecewise) and calculate any algebraic functions with fuzzy numbers as arguments. It is easily extendable and easy to use. To the moment of development there were no freely accessible analogs and probably no proprietary libraries of this kind. If you are interested in this library, feel free to contact me.
With its help basic support of fuzzy decision making was integrated into DECERNS system.
Here are some screenshots of testing application that allows to manipulate fuzzy numbers and see the results of some decision support methods.



