From:	"Andrew Hurrell" <andrew AT amh-consulting DOT freeserve DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Bessel Functions
Date:	Wed, 29 Sep 1999 22:15:20 +0100
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matthewodonnell AT my-deja DOT com wrote
>I need various Bessel functions.  Do they exist as C++ code somewhere in
>downloadable form from some library?  I already know about the numerical
>recipes site.  thanks.


They are already in the libm that ships with DJGPP (This will set you up
with
j0, j1, jn, y0, y1, yn)  If you need hankel functions then these are easily
derived
from j and y.  If you want additional math functions then look at the cephes
package on netlib

Andrew

PS if you use rhide don't forget to add libm to the search list for the info
browser - this will give online help for the math functions as well

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