forum.alglib.net

Hi.
http://www.alglib.net/specialfunctions/fractionalorderbessel.php


Here discussed Bessel functions of fractional order.
But I do not see this sample in alglib directly.

Please explain me where i can find it ?????

Support for fractional order Bessel functions was dropped from ALGLIB because of inherent instability of this algorithm. It was ported from Cephes, not written by me. And I had no idea how to fix it. It worked in 99.9% of cases, but there was 0.1% of cases when it failed.

Page you refer to was removed from Table of Contents and is no longer part of the User Guide. Webmaster just forgot to delete it from site.

Ok. it's clear.
Please send this algorithm. I am very interested to look at it.
If I can fix I will post it to you.

It is desirable to С++ or C#.

You can download one of the old releases, ALGLIB 2.1.2, from http://www.alglib.net/translator/re/alg ... ll.cpp.zip or http://www.alglib.net/translator/re/alg ... csharp.zip It must contain fractional order Bessel functions.

Good luck!

Thank you for your help.
I will write you if I can find a solution.