Permutation
- To: mathgroup at smc.vnet.net
- Subject: [mg9161] Permutation
- From: David Djajaputra <dd4b at virginia.edu>
- Date: Thu, 16 Oct 1997 03:38:01 -0400
- Organization: University of Virginia
- Sender: owner-wri-mathgroup at wolfram.com
Hello,
Is it possible to ask Mathematica to expand an abstract algebraic
formula? I mean, to do
something like
(1+x)^n = Sum[Binomial[n,m] x^m, {m,0,n}]
I have in mind problems like determining, in closed form, the
coefficient of (x^m y^n) in
((a+y) + (b+cx+dx^2))^k
for example, which then can help in proving formulas, etc.
Thanks a lot.
David Djajaputra