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MathGroup Archive 2000

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Re: Finding the inverse of a function?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg24200] Re: [mg24193] Finding the inverse of a function?
  • From: "Matt Herman" <Henayni at hotmail.com>
  • Date: Fri, 30 Jun 2000 01:57:28 -0400 (EDT)
  • References: <200006290251.WAA20376@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hello,

Here is the function implementing what I explained last post.

InvFunc[poly_] := Solve[poly == y, x][[2, 1, 2]] /. y -> x
----- Original Message ----- 
From: <heathw at in-tch.com>
To: mathgroup at smc.vnet.net
Subject: [mg24200] [mg24193] Finding the inverse of a function?


> Hi,
> Is there some way to make Mathematica find the inverse of a user defined
> function? I read the Mathematica Book and found InverseFunction[ ] but
> it will only show the inverse of a Mathematica function. I would like to
> be able to find the inverse of polynomials.
> Thanks,
> Heath
> 
> 
> 


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