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Re: Integrate Bug

  • To: mathgroup at smc.vnet.net
  • Subject: [mg100100] Re: [mg99983] Integrate Bug
  • From: peter <plindsay.0 at gmail.com>
  • Date: Mon, 25 May 2009 06:13:03 -0400 (EDT)
  • References: <200905210405.AAA09663@smc.vnet.net>

mac os x 10.5.7, Mathematica 7.0.1.0, 32 Bit: gives 0

Peter

2009/5/21 Ney Lemke <ney.nlemke at gmail.com>:
> I am trying to calculate this integral that should be positive.But the
> answer is 0.
>
>
>
> In: Integrate[(1)/(z^2 + b^2 + a^2 - 2 z b Sin[\[Theta]] -
>    2 a b Cos[\[Theta]])^(1/2), {\[Theta], 0, 2 \[Pi]},
>  Assumptions -> {a > 0, b > 0, z > 0}]
>
> Out:0
>
> Anybody have notice a situation like that?
>
> My platform is MacOSX 10.4 and Mathematica 7.
>
>
> Best wishes,
>
>



--
Peter Lindsay


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