POV-Ray : Newsgroups : povray.advanced-users : Square roots of negative numbers in isosurfaces? : Re: Square roots of negative numbers in isosurfaces? Server Time
30 Jul 2024 06:26:44 EDT (-0400)
  Re: Square roots of negative numbers in isosurfaces?  
From: Ron Parker
Date: 10 Jan 2000 11:02:27
Message: <387a0293@news.povray.org>
On Mon, 10 Jan 2000 10:55:52 -0500, david sharp wrote:
>The isosurface stuff converts x to absolute value of x
>before trying to use the ^. This is just to avoid many floating
>point errors.  The isosurface code does the same conversion
>before applying sqrt() or ln().

Does it only do that for fractional exponents, or does it also 
do it for odd integer exponents?

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html


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