Simplifying constants

*To*: mathgroup at smc.vnet.net*Subject*: [mg18489] Simplifying constants*From*: "Morten G. Dyndgaard" <mgd at com.dtu.dk>*Date*: Wed, 7 Jul 1999 23:08:46 -0400*Organization*: UNI-C*Sender*: owner-wri-mathgroup at wolfram.com

Hi, I am working with some annoyingly long equations that I want to simplify by including one set of parameters in a constant (or function) A, and another in B and so on. You can easily do: A = b+c+d+e but what I want to do is the reverse: b+c+d+e = A and use this information to reduce the equations. Does anybody know how to do this? -- Morten G. Dyndgaard E-mail: mgd at com.dtu.dk