Error in Bessel Zeros Package?
- To: mathgroup at christensen.Cybernetics.NET
- Subject: [mg298] Error in Bessel Zeros Package?
- From: "Roger M. Jones" <rmj at LLEWELYN.SLAC.Stanford.EDU>
- Date: Tue, 06 Dec 1994 22:34:41 -0800
Dear Users,
Is there a bug in the Bessel function routine for finding zeros?
The following (confirmed by curves):
FindRoot[fd[3,1.2,x]==0,{x,.1}]
Out[]=
6.00731
gives a different result with the built in routine:
BesselJPrimeYPrimeJPrimeYPrimeZeros[3,1.2,1]
Out[]=
{15.9664}
This is true for all nu values 1,2, etc, for the 1st root.
Perhaps there is a patch already made for this?
---
Yours,
Roger
(rmj at llewelyn.slac.stanford.edu)