Re: about real part
- To: mathgroup at smc.vnet.net
- Subject: [mg41195] Re: about real part
- From: bobhanlon at aol.com (Bob Hanlon)
- Date: Wed, 7 May 2003 03:51:03 -0400 (EDT)
- References: <b982nm$67m$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Simplify[Re[(I*w*t+(L+1)L*t*D)^1/2], Element[{w,L,D,t}, Reals]]
(1/2)*D*L*(L + 1)*t
Re[(I*w*t+(L+1)L*t*D)^1/2] // ComplexExpand//Simplify
(1/2)*D*L*(L + 1)*t
Bob Hanlon
In article <b982nm$67m$1 at smc.vnet.net>, Duanxiang Xu <duanxiangxu at yahoo.com>
wrote:
>Subject: about real part
>From: Duanxiang Xu <duanxiangxu at yahoo.com>
To: mathgroup at smc.vnet.net
>Date: Tue, 6 May 2003 10:28:06 +0000 (UTC)
>
>Hi, all
>
>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
>
>