From: mkffll on
Hi all,

does anybody knows about a free VB(A) library containing all kind
Bessel functions for real and / or complex arguments. Any feedback
would be much appreciated.

Many thanks in advance,

Marco
From: Auric__ on
On Thu, 07 Jan 2010 08:35:03 GMT, mkffll wrote:

> does anybody knows about a free VB(A) library containing all kind
> Bessel functions for real and / or complex arguments. Any feedback
> would be much appreciated.

GNU Scientific Library:
http://gnuwin32.sourceforge.net/packages/gsl.htm

(It would probably be best to get the "Complete package, except sources"
package. Trust me, you *need* the docs for this one.)

Wikipedia has some demo C code at the GSL page for calculating the Bessel
function:
http://en.wikipedia.org/wiki/GNU_Scientific_Library#Example

It looks like it's as simple as:
declare function gsl_sf_bessel_J0 lib "libgsl.dll" (x as double) as double
'...
dim x as double, y as double
x = 5
y = gsl_sf_bessel_J0(x)

(Note that I haven't actually *tried* using GSL under VBanything. The above
sample code might not work, YMMV, etc.)

One *important* note is that if you use GSL, the program (or whatever) that
calls it is automatically covered by the GPL... I think. (IANAL.) If you
don't want to GPL your code, you should probably find something else. (Not a
problem for *me*, but it's not *my code*.)

--
Stumble in your soul. Give yourself to me.
From: Druidic Ranger on
On Jan 7, 8:38 am, "Auric__" <not.my.r...(a)email.address> wrote:

> --
> Stumble in your soul. Give yourself to me.

This signature is not appropriate to this newsfroup. Please stop
writing subliminal visual basic code. The human brain is not a
compiler.

--
William Gates
From: Auric__ on
On Fri, 08 Jan 2010 16:13:20 GMT, Druidic Ranger wrote:

> On Jan 7, 8:38�am, "Auric__" <not.my.r...(a)email.address> wrote:
>
>> --
>> Stumble in your soul. Give yourself to me.
>
> This signature is not appropriate to this newsfroup. Please stop
> writing subliminal visual basic code. The human brain is not a
> compiler.

I'll stop when you show me where I'm writing subliminal code.

(The quoted sig is from the Lacuna Coil song "Comalies".)

(Good sigmonster. Have a cookie.)

--
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From: MoiInAust on

"Druidic Ranger" <nochsfentor(a)yahoo.com> wrote in message
news:f4450da1-d4ae-47ac-82c7-aafb891dda38(a)26g2000yqo.googlegroups.com...
On Jan 7, 8:38 am, "Auric__" <not.my.r...(a)email.address> wrote:

> --
> Stumble in your soul. Give yourself to me.

This signature is not appropriate to this newsfroup. Please stop
writing subliminal visual basic code. The human brain is not a
compiler.

Yes, newsfroups should not be polluted by instinctive proofreaders...