How to get the radius of a circumference given some points

AI Thread Summary
A program is sought to calculate the radius of a circle from given Cartesian coordinates of points. While it can be done manually, using a math scripting program like GNU Octave is recommended for efficiency, especially when dealing with multiple calculations. The discussion highlights that the uniqueness of the radius depends on the number of points provided; too few points may not yield a definitive radius. Additionally, a clarification is made that a circumference itself does not possess a radius, but a circle does.
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Do you guys know of any program that can give me the radius of a circumference, if I input the cartesian coordinates of some points?
 
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its usually trivial enough to do by hand.
if you have to do it a lot, you use a math scripting program like gnu octave.
a lot depend on details... i.e. too few points and there will be no unique radius.
niggle: a circumference does not have a radius, but a circle has both.
 

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