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MathGroup Archive 2000

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Re: Bessel J0 zeros

  • To: mathgroup at smc.vnet.net
  • Subject: [mg21797] Re: Bessel J0 zeros
  • From: "Dale Horton" <daleh at wolfram.com>
  • Date: Thu, 27 Jan 2000 22:57:42 -0500 (EST)
  • Organization: Wolfram Research, Inc.
  • References: <86mdkm$2e7@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

If you are using M_ 3.0.1 for Windows, see

http://support.wolfram.com/Packages/NumericalMath/BesselProblem.html

-Dale

Roberto Brambilla <brambilla.roberto at sri.enel.it> wrote in message
news:86mdkm$2e7 at smc.vnet.net...
> Hello !
>
> I'm using Mathematica 3.0 and I have found a strange behaviour
> of standard package BesselZeros :
>
> BesselJZeros[0,2] works
> BesselJZeros[0,k] k=3,4,5,6  does not work at all
> BesselJZeros[0,k] k=7,8... works again
>
> (and very well BesselJZero[0,30] in 3.2 sec).
>
> so no problem : "ubi maior minor cessat".
> Can anyone explain me this incongrous fact ?
>
> Thanks    Roberto Brambilla
> Dott. Roberto Brambilla
> ENEL PEA
> Via A.Volta, 1
> 20093 Cologno Monzese (MI)
> tel +39.2.7224.5364
> fax +39.2.7224.5465
> bramrob at pea.enel.it
>
>




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