Do the Math

Apache Commons Math 3.0 arrives

Chris Mayer

The popular Java library gets raft of changes in the Math project, such as Iterative solvers and enhanced ODE framework

Still undoubtedly one of the most popular libraries for Java, Apache Commons has done some calculations (putting it mildly) updating Apache Commons Math with its third version, adding in a variety of new mathematics and statistics components.

The major version contains new features, big fixes and refinements to existing features. Some of the new features include Iterative solvers, Kalman filter, ISAAC RNG, Illinois and Pegasus root finders, an enhanced ODE framework, a refactored geometry package and the inclusion of Binary Space Partition trees.

Changes made to existing features include exclusive use of unchecked exceptions and the removal of interfaces for which a single implementation is assumed to exist. Throughout there is improved coding and API consistency within packages making it more robust and giving greater performance.

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, 

The library can be used from Java 5 onwards. Due to the changes of the base package name, this version can be used in conjunction with older versions of the Maths project. Users are encouraged to upgrade to this version as soon as possible. Users of Commons Math 2.0-2 should recompile their code against the 3.0 JAR file and must adjust the import statements to use the appropriate org.apache.commons.math3 base package.

You can find more about this new version in the release notes provided.

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