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Contents for the release notes. 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1414470 13f79535-47bb-0310-9956-ffa450edef68
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Gilles Sadowski 2012-11-27 23:43:06 +00:00
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@ -51,6 +51,31 @@ If the output is not quite correct, check for invisible trailing spaces!
</properties>
<body>
<release version="3.1" date="TBD" description="
This 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 v3.0 JAR file.
Most notable among the new features are: Framework for automatic
differentiation, multivariate mixture model distribution, quaternions,
Gauss integration framework, Hermite polynomial interpolation,
eigenvalue decomposition of non-symmetric matrices.
Most notable among the changes are: Greatly improved precision in
the implementation of Gamma and Beta special functions, optimizers
API, deprecation of the sparse vector implementation.
The minimal version of the Java platform required to compile and use
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).
Caveat:
1. The implementation of the BOBYQA optimization algorithm is in alpha
state (cf. MATH-621): Many code paths are untested, and we are looking
for volunteers to improve the code readability, robustness and performance
and to extend the unit tests suite.
2. A few methods in the FastMath class are in fact slower that their
counterpart in either Math or StrictMath (cf. MATH-740 and MATH-901).
">
<action dev="erans" type="add" issue="MATH-910">
Added element-by-element addition, subtraction, multiplication and division