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Tangent Corner / Re: Serious Puzzler
« on: November 09, 2008, 05:34:27 AM »
I believe the mathematical solution for finding the distance between any three equi-spaced points on the circumference of an ellipse is extremely complex and would therefore be difficult to demonstrate to anybody.
Having said that someone is bound to prove me wrong and solve your problem.
In consolation, when I was employed in engineering I remember that diameter and roundness tests were two entirely different things and the plug gauge was the master reference for hole sizes. The attached picture shows two seven sided coins, neither of which is round however measuring the diameter of either with a standard micrometer will show it to be the same diameter at any point of measurement.
Tweakie.
Having said that someone is bound to prove me wrong and solve your problem.
In consolation, when I was employed in engineering I remember that diameter and roundness tests were two entirely different things and the plug gauge was the master reference for hole sizes. The attached picture shows two seven sided coins, neither of which is round however measuring the diameter of either with a standard micrometer will show it to be the same diameter at any point of measurement.
Tweakie.