implicit function

*To*: mathgroup at smc.vnet.net*Subject*: [mg28297] implicit function*From*: "Phil Bonacich" <bonacich at soc.ucla.edu>*Date*: Sat, 7 Apr 2001 03:44:58 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

This is a simple problem, but one that has bedeviled me. I define ff[x_] := FindRoot[2y == x, {y, .5}] . I don't want "{y -> 0.25}" when I enter ff[.5]; I want ".25", so that I can do other things with the function ff. How do I get it?

**Follow-Ups**:**Re: implicit function***From:*Tomas Garza <tgarza01@prodigy.net.mx>

**Re: implicit function***From:*Matthias Hertel <wir95cgu@studserv.uni-leipzig.de>