Re: Coefficient...
- To: mathgroup at smc.vnet.net
- Subject: [mg79664] Re: Coefficient...
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 1 Aug 2007 05:06:31 -0400 (EDT)
- Organization: Uni Leipzig
- References: <f8n1i0$j87$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi, Select[Coefficient[fx, x], FreeQ[#, y] && FreeQ[#, z] &] may be there is an if clause in it .. but Coefficient[fx, x] /. a_*(y | z) :> Sequence[] has no if clause Regards Jens Bruno Campanini wrote: > Given fx:=ax^2 + dxy + 2cx + bcxz > Coefficient[fx,x] gives dy + 2c + bcz but I only need 2c. > > Without any If clause, is it possible to get Coefficient not > to look on terms containing y or z? > > Bruno >