An Infinitely Large Napkin
General Mission Analysis Tool
Numerical and Symbolic Math Tool
MCPower — simple Monte Carlo power analysis for complex models
Use simulation to perform statistical analyses.
Social Network Analysis and Visualization software
Unicode XML TEI text analysis platform
Parallel Optimization Library for Java
Computer calculations made easy
Log-linear analysis (data modelling) for high-dimensional data
Free Matlab toolbox to compute robust correlations
A primality/compositeness tester for different types of numbers.
A basic prime number sieve/tester.
Utility classes from maps to search engine to random samplers