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Re: Difficulties with Re

• To: mathgroup at smc.vnet.net
• Subject: [mg98339] Re: [mg98349] Difficulties with Re
• From: Ailing Zhao <ailingz at wolfram.com>
• Date: Wed, 8 Apr 2009 02:45:39 -0400 (EDT)
• References: <200904060905.FAA26352@smc.vnet.net>

Try this:
ComplexExpand[Re[Exp[x + I y]]]
ComplexExpand[Re[Exp[(x + I y)^2]]]

Thanks,

Ailing

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
>
>   

• References:
  • Difficulties with Re
    • From: Aaron Fude <aaronfude@gmail.com>