Re: about real part
- To: mathgroup at smc.vnet.net
- Subject: [mg41373] Re: about real part
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Fri, 16 May 2003 06:46:10 -0400 (EDT)
- Organization: The University of Western Australia
- References: <b982nm$67m$1@smc.vnet.net> <b9adll$cpj$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <b9adll$cpj$1 at smc.vnet.net>, bobhanlon at aol.com (Bob Hanlon)
wrote:
> Simplify[Re[(I*w*t+(L+1)L*t*D)^1/2], Element[{w,L,D,t}, Reals]]
I'm pretty sure that the poster really meant
Re[(I*w*t+(L+1)L*t*D)^(1/2)]
(note the parens around the power), which is not quite so simple ...
Cheers,
Paul
> In article <b982nm$67m$1 at smc.vnet.net>, Duanxiang Xu <duanxiangxu at yahoo.com>
> wrote:
>
> > ....
> >I have problem when I was trying to get the real part
> >of a complex expression,
> >like
> >Re[(Iwt+(L+1)LtD)^1/2]
> >here w,L,D are real paramaters and t is real variable
> >Mathematica seems could do nothing about this
> >
> >
--
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