On 11/27/12 3:43 PM, er...@apache.org wrote: > Author: erans > Date: Tue Nov 27 23:43:06 2012 > New Revision: 1414470 > > URL: http://svn.apache.org/viewvc?rev=1414470&view=rev > Log: > Contents for the release notes. > > Modified: > commons/proper/math/trunk/src/changes/changes.xml > > Modified: commons/proper/math/trunk/src/changes/changes.xml > URL: > http://svn.apache.org/viewvc/commons/proper/math/trunk/src/changes/changes.xml?rev=1414470&r1=1414469&r2=1414470&view=diff > ============================================================================== > --- commons/proper/math/trunk/src/changes/changes.xml (original) > +++ commons/proper/math/trunk/src/changes/changes.xml Tue Nov 27 23:43:06 2012 > @@ -51,6 +51,31 @@ If the output is not quite correct, chec > </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 > > > Nice work! Definitely past time for a release :)
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