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From Phil Steitz <>
Subject Re: [math] Matrix storage format WAS Re: svn commit: r721203 [1/2] - in /commons/proper/math/branches/MATH_2_0: ./ src/java/org/apache/commons/math/linear/ src/site/xdoc/ src/site/xdoc/userguide/ src/test/org/apache/commons/math/linear/
Date Sat, 29 Nov 2008 20:15:27 GMT
Ted Dunning wrote:
> Actually, much of the API is fairly perverse.  In the statistical code,
> particularly, there are typically two three classes where one would do.  I
> think that somebody read the book on "style" and took it a bit too
> literally.  Factories and abstracts and interfaces and concrete
> implementations are all well and good where there is something complex going
> on, but for classes with just a few implementations an abstract super-class
> and concrete implementations would do just fine. (and it could grow into the
> more complex arrangement if there ever is a need).

Specific suggestions - ideally with patches - for improvements to the 
API are welcome.  In 2.0 we are making some changes and deprecating some 
things, so now is the time to do this.  

> On Sat, Nov 29, 2008 at 7:10 AM, Phil Steitz <> wrote:
>> An admittedly smelly, but useful feature of RealMatrixImpl is that it
>> exposes the underlying double[][] array.

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