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Bessel functions?

From: Kurt Hornik
Subject: Bessel functions?
Date: Fri, 17 Jan 1997 08:44:34 +0100

>>>>> On Thu, 16 Jan 1997 14:37:34 -0600,
>>>>> "John W. Eaton" <address@hidden> said:

> On 16-Jan-1997, Dave Cottingham <address@hidden> wrote:
> : As I am in need of some Bessel functions, I picked up the latest
> : contrib archive of special functions from the very handy site
> :  However, I cannot
> : get besselj to work.  It relies on functions j0 and j1, which are not
> : present in either octave 1.1.1 or 2.0, and which I can't find anywhere
> : in the contrib archive.  Does anybody know how to get this to work?

> Kurt Hornik's current collection of functions for Octave includes a
> newer version of besslj() that uses jybess() instead of j0() or j1().
> You can get Kurt's files from in the directory
> /pub/export/octave.  I believe jybess() is available from the archive
> of contributed functions at


The initial versions simply used j0() and j1() because these have been
available under Linux for a long time.  Then, Eyal wrote jybess();  the
new bessel* functions are simply wrappers for that.

The new versions should appear in the Contrib Archive soon ... I am
having problem downloading the updated octave-ci collection I announced
yesterday.  Meanwhile, you can get the whole collection at the URL


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