The jTEM project numericalMethods is a collection of mostly standard routines providing numerical solutions for many common problems in algebra, calculus, and geometry.
They were implemented avoiding fancy class hierarchies to keep the code as simple as possible. Thus most of the functionality is realized using static methods with parameters of ordinary types. This guarantees a high reusability of the code and allows an easy integration into new projects. A further benefit of this ascetic java-programming-style is that it helps to minimize internal dependencies which allows to use this code easily as a blueprint for further developments.
For the purpose of submitting this package to Fedora, here is the RPM spec file.