The Apache Commons Team is pleased to announce the availability of Apache Commons Math 3.5. Apache 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. Version 3.5 is a minor release: It combines bug fixes and new features. Changes to existing features were made in a backwards-compatible way such as to allow drop-in replacement of the v3.4.1 JAR file. Most notable among the new features are: getQuadraticMean method added to DescriptiveStatistics SummaryStatistics which calculates the root mean square, and a way to build polyhedrons sets from list of vertices and the facets they belong too. There have been numerous bug fixes. The minimum version of the Java platform required to compile and use Apache Commons Math is Java 5. Users are encouraged to upgrade to this version as this release not only includes bug fixes but also deprecates numerous classes and methods that will be deleted from the next major release (4.0). A full list of all changes can be found in the release notes at http://www.apache.org/dist/commons/math/RELEASE-NOTES.txt Source and binary distributions are available for download from the Apache Commons download site: http://commons.apache.org/proper/commons-math/download_math.cgi When downloading, please verify signatures using the KEYS file available at the above location when downloading the release. Maven artifacts are also available in the maven central repository: GroupId: org.apache.commons ArtifactId: commons-math3 Version: 3.5 For complete information on Apache Commons Math, including instructions on how to submit bug reports, patches, or suggestions for improvement, see the Apache Commons Math website: http://commons.apache.org/proper/commons-math/ Luc Maisonobe, on behalf of the Apache Commons community