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troublesome integral

  • To: mathgroup at smc.vnet.net
  • Subject: [mg125998] troublesome integral
  • From: peter lindsay <pl0 at me.com>
  • Date: Thu, 12 Apr 2012 02:34:22 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

A couple of colleagues wondered about this. I've sent it on to support @ wolfram who are escalating it to the developers. Possibly someone here has an answer though ?

Integrate[Cos[\[Beta]] Exp[I z Cos[\[Beta]-\[Alpha]]],{\[Beta],0,2 \[Pi]},Assumptions->z\[Element]Reals]

doesn't seem to run.

Answer should be

2 I \[Pi] BesselJ[1,z] Cos[\[Alpha]]  [ I think ]

thanks


Peter Lindsay




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