Description:

Commons Math is a library of lightweight, self-contained
mathematics and statistics components addressing the most
common problems not available in the Java programming
language or Commons Lang.
Guiding principles:
Real-world application use cases determine development
priority.
This package emphasizes small, easily integrated components
rather than large libraries with complex dependencies and
configurations.
All algorithms are fully documented and follow generally
accepted best practices.
In situations where multiple standard algorithms exist, a
Strategy pattern is used to support multiple implementations.
Limited dependencies. No external dependencies beyond Commons
components and the core Java 2 platform.