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MathGroup Archive 2001

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Re: implicit function

  • To: mathgroup at
  • Subject: [mg28313] Re: implicit function
  • From: "Paul Lutus" <nospam at>
  • Date: Mon, 9 Apr 2001 02:58:10 -0400 (EDT)
  • References: <9arhph$>
  • Sender: owner-wri-mathgroup at

"Phil Bonacich" <bonacich at> wrote in message
news:9arhph$q8m at
> 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
> ff.  How do I get it?

ff[x_] := FindRoot[2y == x, {y, .5}] [[1,2]]

Paul Lutus

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