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Re: a simplification problem

• To: mathgroup at smc.vnet.net
• Subject: [mg55207] Re: a simplification problem
• From: Torsten Coym <torsten.coym at eas.iis.fraunhofer.de>
• Date: Thu, 17 Mar 2005 03:28:26 -0500 (EST)
• References: <d192m6$net$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Well, you cannot simplify (-1)^(1/3) to -1, because it equals 
1/2+I*Sqrt[3]/2.

This can be easily verified by

ComplexExpand[(-1)^(1/3)]

Torsten


Hui Fang wrote:
> Dear All,
> 
> My questions is simple:
> How do I simplify (-1)^(1/3) to -1?
> 
> Thanks!
>