Fitting a Circle to a Given Set of Points
Date: 08/12/2005 at 12:03:21 From: Jessica Subject: circular regression Given a set of points how do you calculate the circle of best fit? In other words, if you were given a set of points how would you find the center and radius, or the equation for the circle of best fit? Is there a way to do it on Excel or the graphing calculator? I believe it has something to do with the least squares method and the distance formula. I have found some programs you can purchase to calculate it, but I was curious on the method.
Date: 08/12/2005 at 13:56:09 From: Doctor George Subject: Re: circular regression Hi Jessica, Thanks for writing to Doctor Math. This link has an excellent paper on fitting curves, including least squares circles: http://nvl.nist.gov/pub/nistpubs/jres/103/6/j36sha.pdf Write again if you need more help. - Doctor George, The Math Forum http://mathforum.org/dr.math/
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