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From Luc Maisonobe <>
Subject Re: [Math] Towards release 3.1
Date Sat, 04 Aug 2012 10:14:58 GMT
Le 03/08/2012 22:22, Gilles Sadowski a écrit :
> Hello.

Hi Gilles,

> More than 60 issues have been resolved since the release of Commons Math
> 3.0.
> I think that it is time to lay out a road map for the next release (3.1),
> with a target date of early September (at which point, 3.0 will be 6 months
> old).


> The following issues have been worked on as much as permitted for a minor
> release (backwards-compatibility) and thus can be considered resolved w.r.t.
> the 3.1 release:
>   MATH-825
>   MATH-803
>   MATH-800
>   MATH-799
>   MATH-784
> The following issues are bugs that do not block the 3.1 release (either they
> are minor or they would require semantic changes that are forbidden, or will
> be surprising, in a minor release):
>   MATH-821
>   MATH-788
>   MATH-758
> The following are the more serious issues:
>   MATH-836
>   MATH-828
>   MATH-819
>   MATH-789
>   MATH-778
>   MATH-740
>   MATH-738
> "Wish" or "improvement" issues that miss a patch should not be blocking the
> 3.1 release.
> Some of them are still marked with 3.1 as the target version. Please give
> your opinion about whether they could be easily implemented in the next few
> weeks, or should be postponed to release 3.2 or 4.0.
> Some issues have a large scope and would require a re-design of certain
> classes (e.g. MATH-765 and related), not to be implemented in a minor
> release.
> Please review all issues (especially those assigned to you, or reported by
> you, or where you took an active part in the discussion) and provide
> feedback on their "currentness".

Since a few weeks, I am working on the differentiation API (it was
surprinsingly difficult to implement Dan Kalman's paper efficiently).
The core part is almost ready, as per Julien and Phil comments. I hope
to commit a first working set in a few days now.

I would like to have this API and some preliminary implementations
included in 3.1. The ones I would like to have are the basic building
blocks supporting direct implementation by user and finite differences
at least for small derivation orders.


> Thanks and best regards,
> Gilles
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