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Re: Difficulties with Re

  • To: mathgroup at smc.vnet.net
  • Subject: [mg98377] Re: Difficulties with Re
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 8 Apr 2009 05:03:20 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <grcgjq$pmv$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

Assuming[x > 0 && y > 0,
  Re[Exp[(x + I y)^2]] /. Exp[a_] :> Exp[Expand[a]] // Simplify]

?
Regards
   Jens

Aaron Fude wrote:
> Hi,
> 
> Of the following two expressions, the first "works", while the second
> doesn't. How does one make it work?
> 
> Assuming[x > 0 && y > 0, Re[Exp[x + I y]] // Simplify]
> Assuming[x > 0 && y > 0, Re[Exp[(x + I y)^2]] // Simplify]
> 
> Many thanks in advance,
> 
> Aaron
> 


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