POV-Ray : Newsgroups : povray.advanced-users : Tangent to two ellipses? : Re: Tangent to two ellipses? Server Time
29 Jun 2024 02:00:52 EDT (-0400)
  Re: Tangent to two ellipses?  
From: Alain
Date: 17 Oct 2010 14:23:15
Message: <4cbb3f13@news.povray.org>
Le 2010-10-17 13:43, Tim Cook a écrit :

>> Are they true ellipses or just scaled circles ?
>
> Er? I thought that's what ellipses were...rather, a circle being a
> special case of an ellipse. (One site I looked at mentioned scaling
> everything so one ellipse is a unit circle at origin and solving from
> there...?)
Yes, a circle is a special case of an ellipse.
No, an ellips is not an unevenly scalled circle. It's close but not 
quite the same.
>


Alain


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