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Can't get the 3rd Bessel zero!

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  • Subject: [mg19799] Can't get the 3rd Bessel zero!
  • From: iioannou at (I. Ioannou)
  • Date: Fri, 17 Sep 1999 01:36:50 -0400
  • Organization: University of Washington, Seattle
  • Sender: owner-wri-mathgroup at

Hi all,

I've been working with BesselJZeros recently, and the code I wrote shows
the following peculiar behavior. While I can get all the Bessel zeros I
need for most of the functions, I get mathematica to hang up at the 3rd
Bessel zero of the 0th order Bessel.

So, BesselJZeros[0,2] works, BesselJZeros[1,5] works, but
BesselJZeros[0,3] doesn't work. (waited for a couple of hours before I
aborted the calculation) Does anybody know what this behavior is due to?
Is it a bug? Has it been seen before and by anybody else? Or is it
particular to my machine?

Thanks, John
      Ioannis   I    Ioannou                   phone: (206)-543-1372
      g-2 group, Atomic Physics                fax:   (206)-685-0635
      Department of Physics           
      University of Washington        e-mail: iioannou at

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