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MathGroup Archive 2001

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inverse function computation

  • To: mathgroup at
  • Subject: [mg31660] inverse function computation
  • From: "Margot" <gosia_sz at>
  • Date: Fri, 23 Nov 2001 05:46:37 -0500 (EST)
  • Sender: owner-wri-mathgroup at


I'd like to do the following manipulation.
Let f be a homeomorphism (known explicitly).
I want Mathematica to compute its inverse f^{-1} and to use it
for further computations and plots.
I'm assuming here that f^{-1} is not explicit (take f(x)=x+0.2Sin[x] for

I'm not sure that Mathematica has an already built-in function; do you know
any simple algorithm?

Many thanks

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