Re: complex variable
- To: mathgroup at smc.vnet.net
- Subject: [mg20762] Re: complex variable
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 11 Nov 1999 00:22:41 -0500
- Organization: Universitaet Leipzig
- References: <80auvr$j3s@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, z = x + I*y; ComplexExpand[Im[z]] ? Hope that helps Jens Biao Wu wrote: > > Hi, all > > I have a question: how to define a symbolic variable as real or complex > explicitly? This is related to what I want to do. In math, if I do > > z=x+I*y; Im[z] > > what I get is > > Im[x]+Re[y] > > instead of what I want > > y > > If I can define "x" and "y" explicitly as real variables, I should be > able to do this. Or is there any other way to do it? > > Thanks. > > Wu, Biao