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From: GAURAV on 29 Apr 2010 16:49
Hello Eveyone,

I am trying to get an ellipse passing through the four points I have which are not symmetric.
So, I am using the equation (X-Xc)^2/(a^2) + (Y-Yc)^2/(b^2) =1

I have four points which wil go in X and Y of the equation above.
Let the points be (a1,b1), (a2,b2), (a3,b3) and (a4,b4)..

How do I get a,b,Xc and Yc from this??

Please help me out. Really appreciate..

Thanks,
Gaurav
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Prev: plotting data points with numerical y-axis and a string x-axis
Next: SOLVE 4 NONLINEAR EQUATIONS (HELP PLEASE)