Retsam wrote:
> Retsam wrote:
> 
>>You know, this has been bugging me, because it just seems like there's got
>>to be a way to do it with straight vector math, without resorting to
>>sin/cos parameterizations and taking partial derivatives (with respect
>>to each parameter) to find local minima.
>>
>>The best I've been able to come up with so far is this...
> 
> 
> 
> Okay, I think I may have a fast and much more accurate approach than most of
> the others mentioned.  First of all, it will be a numerical approximation
> approach, so no derivatives.

Thanks for the code, that's pretty much the approach I was looking at, 
but hadn't got around to implementing it yet.

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