On 5/4/20 8:08 PM, Bald Eagle wrote:
> And wow - wouldn't you know - when you actually do the math correctly, it comes
> out dead-on.
> 
> :)
> 
> f_elliptical_torus in the proper x-z plane
> 

Cool! :-)

I'm going make another attempt at an inbuilt function for this. If 
you've tweaked something in the code from the previous few posts, please 
let me know.

More ReL (Real Life) than RaL (Ray Life) today - so likely later this 
week before I get to it.

Bill P.

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