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From S├ębastien Brisard <sebastien.bris...@m4x.org>
Subject Re: svn commit: r1414470 - /commons/proper/math/trunk/src/changes/changes.xml
Date Wed, 28 Nov 2012 03:17:00 GMT
Hi,


2012/11/28 Phil Steitz <phil@steitz.com>

> On 11/27/12 3:43 PM, erans@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.
>
Actually, Beta has been improved on my computer only ;). Would you like me
to change that?
S├ębastien

> > +
> > +  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 :)
>
> Phil
>
> --
>
>
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