Re: integral of Bessel function, bug in Mathematica 4.0
- To: mathgroup at smc.vnet.net
- Subject: [mg25650] Re: integral of Bessel function, bug in Mathematica 4.0
- From: Viorel Negoita <viorel at magnum.phyast.pitt.edu>
- Date: Wed, 18 Oct 2000 02:52:24 -0400 (EDT)
- Organization: University of Pittsburgh
- References: <8s175p$ihq@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 11 Oct 2000, GS wrote:
> Here is a bug in Mathematica 4.0
> In[1]:=
> Integrate[BesselJ[1, x]^2 x, {x, 0, Infinity}]
> Out[1]=
> 0
>
> The integral cannot be zero because the integrand is positive.
> Actually, this integral diverges, as is known, and can be checked
> by numerical integration
>
> Gennady.
>
>
I get the right answer with Mathematica 4.0.2.0 on both Windows and Mac
OS.
--
Viorel