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MathGroup Archive 2004

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Re: Troubles with Integrating certain functions in 5.0

  • To: mathgroup at smc.vnet.net
  • Subject: [mg49127] Re: Troubles with Integrating certain functions in 5.0
  • From: Hendrik van Hees <hees at comp.tamu.edu>
  • Date: Fri, 2 Jul 2004 02:01:29 -0400 (EDT)
  • Organization: Texas A&M University
  • References: <cc0n0q$kvs$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Matt Hancher wrote:


> In: Integrate[Exp[-Sin[x]^2]*Sqrt[E], {x, 0, Pi}]
> Out: Pi ( BesselI[0, 1/2] - StruveL[0, 1/2] )
> 
> Versus:
> 
> In: Integrate[Exp[-Sin[x]^2], {x, 0, Pi}]*Sqrt[E]
> Out: Pi BesselI[0,1/2]

Hm, this means Mathematica did things better in the past. I still run
4.0, and I get the (hopefully right) result pi I_0(1/2) in both cases.

-- 
Hendrik van Hees                        Cyclotron Institute 
Phone: +1 979/845-1411                  Texas A&M University 
Fax:   +1 979/845-1899                  Cyclotron Institute, MS-3366
http://theory.gsi.de/~vanhees/          College Station, TX 77843-3366


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