Symja - Java computer algebra language & symbolic math library
Java language binding for the GNU Linear Programming Kit (GLPK)
Windows binaries for the GNU Linear Programming Kit (GLPK)
Parallel Optimization Library for Java
Computer calculations made easy
A Free and Open Source Java Framework for Multiobjective Optimization
A simple programmable spreadsheet for learning statistics.
Lapack/quadprog QP for VBA/.Net/Java
A fair attempt at the Keplerian tradition to explore the solar system
Zero Sum Game Solver Java Library