On Wed, 26 Mar 2003 01:14:02 +1100, Edward Coffey <eco### [at] alphalinkcomau>
wrote:
> This only works when both your circles are sitting on the same plane, > not when they may take any orientation in 3D space.
You have to define distance as function and then find where it has minimum.
http://mathworld.wolfram.com/Minimum.html
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