I received an email requesting that the complex bessel function be implemented in Fractint. I have a bunch of complex analysis and numerical analysis books I am checking. I also have Numerical Recipes in C, but that code is copyrighted, and also has a poor reputation. Does anyone have either a clear formulation suitable for implementation, or even better, an implementation to contribute? If so, let me know. A Mac program has implemented it. I have emailed the author, but of course I don't know if he'll be interested in contributing his implementation. The web site is here: http://members.optusnet.com.au/~peterstone/parser.html It's hard to tell from these few images if the bessel function would be worth implementing or not. Let me know what you think. Tim
At 15:56 02/10/2002, Tim Wegner wrote:
Does anyone have either a clear formulation suitable for implementation, or even better, an implementation to contribute? A search on "bessel function" (both words) at www.netlib.org turned up 101 hits, mostly algorithms of various sorts. One more specific library (in FORTRAN, but easy enough to understand for a non-guru), written by a Donald E. Amos of Sandia Nat. Labs., is in http://www.netlib.org/amos/.
Morgan L. Owens "BEWARE: ALL CAPS....."
Morgan wrote:
One more specific library (in FORTRAN, but easy enough to understand for a non-guru), written by a Donald E. Amos of Sandia Nat. Labs., is in http://www.netlib.org/amos/.
I downloaded those, I'll have a look. Thanks! Tim
On Tue, 1 Oct 2002, Tim Wegner wrote:
It's hard to tell from these few images if the bessel function would be worth implementing or not. Let me know what you think.
Hi, I made some images with bessel functions, with the algorithm taken from numerical recipes and rewritten for fractint's formula parser. I also posted one of these to the fractal art contest 2000 (http://www.contest2k.com/en/entry-190-3.htm). And I think it's worth implementing these functions. :) I could post the frm, but I think I'd have to remove the copyrighted part. Piero Ranalli
Piero wrote:
I made some images with bessel functions, with the algorithm taken > from numerical recipes and rewritten for fractint's formula parser. I also posted one of these to the fractal art contest 2000 (http://www.contest2k.com/en/entry-190-3.htm). And I think it's worth implementing these functions. :)
I would like to see your Fractint parser implementation bessel function. You could either send it to me or post it. Thanks, Tim
participants (3)
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Morgan L. Owens -
Piero -
Tim Wegner