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MathGroup Archive 2000

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Re: transposing an equation

  • To: mathgroup at
  • Subject: [mg26258] Re: transposing an equation
  • From: Jens-Peer Kuska <kuska at>
  • Date: Sun, 10 Dec 2000 00:19:33 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <90kq3d$>
  • Sender: owner-wri-mathgroup at


Solve[y==a x^2 + b x +x,x]


InverseSeries[a  x^2 + b  x + c + O[x]^3, y]

General it is not possible for an exact polynom to revert
the equation y= a x^2+b*x+c into


Christopher Deacon wrote:
> Suppose y=a x^2+b x +c.
> How can I get Mathematica to solve for x (i.e., x=Ay^2+By+C) and give me the
> values for the constants A,B,C?
> Chris

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