POV-Ray : Newsgroups : povray.general : Torus Equation : Re: Torus Equation Server Time
29 Jul 2024 14:16:53 EDT (-0400)
  Re: Torus Equation  
From: Ron Parker
Date: 8 Jul 1998 12:42:11
Message: <35a39353.0@news.povray.org>
On Wed, 8 Jul 1998 04:35:34 -0400, Justin Rogers <dig### [at] 3nnet> wrote:
>y = sqrt( sqrt(4a^2(b^2-z^2)) + a^2 + b^2 - z^2 - x^2 )
>
>simplify
>
>y = sqrt(2a(b-z)) + a + b - z - x
>
>Now that should be the right equation...  Don't quote me or anything.

This is almost certainly not the right equation.  

sqrt(x^2+y^2) is only equal to x+y when either x or y is zero.


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