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)
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
Zero Sum Game Solver Java Library