Re: Unprotect Plus, no automatic collection
- To: mathgroup at smc.vnet.net
- Subject: [mg39141] Re: Unprotect Plus, no automatic collection
- From: atelesforos at hotmail.com (Orestis Vantzos)
- Date: Fri, 31 Jan 2003 04:36:51 -0500 (EST)
- References: <b184d4$kqb$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Why not just define w2=-1-w1(or and get over and done with it? Orestis Friedrich Laher <mathefritz at schmieder-laher.de> wrote in message news:<b184d4$kqb$1 at smc.vnet.net>... > when Unprotect[Plus]; Plus[w1,w2] = -1 is commanded > and then the expanding of a product gives a*w1 + a*w2 + ... > that is not collapsed to -a + ... automatically, even > if selecting that a*w1 + a*w1 and > the applying Simplify to it from al palette, does it. What > can be done to automize it?