Re: What is happening here? (TagSet)
- To: mathgroup at smc.vnet.net
- Subject: [mg28061] Re: What is happening here? (TagSet)
- From: johntodd at fake.com (John Todd)
- Date: Thu, 29 Mar 2001 03:24:26 -0500 (EST)
- References: <99chu9$8eq@smc.vnet.net> <99f5b2$bf8@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 23 Mar 2001 04:34:26 -0500, Jens-Peer Kuska <kuska at informatik.uni-leipzig.de> wrote: One other quick related question: if I do the following: x/:Im[x]=0; y/:Im[y]=0; all of the equations and problems work just as well as if I had done this: x/:Im[x]=0; y/:Im[y]=0; x/:Re[x]=x; y/:Re[y]=y; which makes sense to me, because the last two 'upvalues' for x seem redundant in my mind, at least from a mathematical viewpoint. Is there some reason that I should go with the latter form as opposed to the former, or will the former suffice? Thanks, JT