From: Josef 'Jupp' Schugt <jupp@...>
Date: 2003-07-30T03:48:35+09:00
Subject: Re: Patches to 1.8.0p4 to add Bessel functions for those that have 'em

Saluton!

* Yukihiro Matsumoto; 2003-07-25, 18:41 UTC:
> If you (or others) come up with your version of Bessel functions
> (that need not to be elegant) in a few days, I can merge them
> before 1.8.0.

When implementating special functions like Bessel ones, care must be
taken about limited precision of floating point numbers - a problem
alien to most programmers. Moreover the algorithms used to evaluate
special functions often depend on quite a number of constants each of
wich may for some reason or another be imprecise. For these reasons I
suggest *not* adding Bessel functions to Ruby 1.8. In my opinion we
should rather strive for including GSL (GNU Scientific Library)
support in core Ruby 2.0.

Gis,

Josef 'Jupp' Schugt
-- 
N'attribuez jamais � la malice ce que l'incomp�tence explique !
-- Napol�on