Hi, Bear,
Thanks for your contributionary sentiment. Unfortunately, we cannot accept
code based on _Numerical Recipes_, given their license.
--- Bear Giles <[EMAIL PROTECTED]> wrote:
> Cleaning out some old files from a grad class. I have one- and
> two-dimensional FFT code in C, ported to Java. It's from the
> "Numerical Recipes" book so it's limited to 2^n.
>
> It needs unit tests and test cases.
>
> FFT begs the question of generalizing to Discrete Wavelet
> transformations (DWT).
>
> If I can find my notes I'll also be able to contribute multigrid
> code. This is a fairly efficient algorithm to solve PDQs. I'll
> leave it to others to add support for parallel- and
> clustered-processing.
>
> Bear
While this stuff is cool, I personally find myself having to hold back when I
think about adding this kind of material, given the project's charter of being
"a library of lightweight, self-contained mathematics and statistics
components addressing the most common practical problems not immediately
available in the Java programming language".
I think FFT's are so widely used (where they're used at all) that they're a
reasonable if not completely obvious candidate for inclusion in Commons-Math.
I'm not convinced that PDE solution algorithms are, though.
If the library were a full-fledged mathematical/scientific library, I would
have no hesitation at all about this material, I assure you. Sorry to be a wet
blanket!
Al
Albert Davidson Chou
Get answers to Mac questions at http://www.Mac-Mgrs.org/ .
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