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Originally Posted by GeeTwo
The center point where all of the angular displacements are the same is (1.16, -0.3).
At this point, the angular displacements are all exactly 1 degree.
Using the mathematical convention (x axis is 0 degrees and the y axis is 90 degrees), the points span the range from 139 to 199 degrees, inclusive.
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Impressive work Gus.
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Of the stock excel fits, polynomial (quadratic by default) is better than the others, but is not an exact match.
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Try rotating the polar axis and fitting the power function r = θ
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