Re: Coefficient...
- To: mathgroup at smc.vnet.net
- Subject: [mg79631] Re: [mg79601] Coefficient...
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Wed, 1 Aug 2007 04:49:13 -0400 (EDT)
- Reply-to: hanlonr at cox.net
fx = a*x^2 + d*x*y + 2*c*x + b*c*x*z;
CoefficientList[fx, {x, y, z}][[2, 1, 1]]
2 c
Coefficient[fx /. {y -> 0, z -> 0}, x]
2 c
Bob Hanlon
---- Bruno Campanini <BC at gmail.com> 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
>