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How to calculate minimum distance between three coordinate withex
x = list of x coordinates
y = list of y coordinates avgx=AVERAGE(x) avgy=AVERAGE(y) cov=COVAR(x,y) varx=VARP(x) vary=VARP(y) d=2*(varx*vary-cov^2) avgu=AVERAGE(((x-avgx)^2+(y-avgy)^2)*(x-avgx)) (an array formula-CSE) avgv=AVERAGE(((x-avgx)^2+(y-avgy)^2)*(y-avgy)) (an array formula-CSE) cx= avgx+(avgu*vary-avgv*cov)/d (x coordinate of center) cy= avgy+(avgv*varx-avgu*cov)/d (y coordinate of center) Kudos to Greg Egan at group comp.graphics.algorithms |
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