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Re: Integrate problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg86210] Re: Integrate problem
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 6 Mar 2008 02:57:12 -0500 (EST)
  • References: <fqlmo4$jdj$1@smc.vnet.net>

Hi,

all a[i] equal to one ?
Try a Series[] of it, to see
the meaning of a empty list in the
first argument.

Regards
   Jens

Michael Weyrauch wrote:
> Hello,
> 
>   evaluating the integral
> 
> Integrate[Sin[1/x]*(Exp[(-a)*x^2]/x), {x, 0, Infinity}, Assumptions -> a > 0]
> 
> in Mathematica 6.0.1 produces
> (1/2)*Pi*HypergeometricPFQ[{}, {1/2, 1}, a/4] - 
> Sqrt[a]*Sqrt[Pi]*HypergeometricPFQ[{}, {3/2, 3/2}, a/4]
> 
> What is the meaning of the empty list in the first parameter of  HypergeometricPFQ?
> 
> Thanks for answers,
> 
> Michael Weyrauch
> 
> 


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