Warp wrote:
>   However, the test (sqrt(100) == 10) will most probably return false due
> to floating point inaccuracies (you can test it if you want if you know C
> and have a compiler).
>   Equality is usually done with an epsilon value (ie.
> abs(sqrt(100)-10) < epsilon), but this doesn't tell you whether the
> point is exactly on the surface, outside it, or inside it. Using this
> kind of test can tell you if the point is extremely close to the surface
> but it won't tell you that if it isn't, if it is inside or outside it.

Well that sucks.  Intel/AMD need to severly upgrade their FPUs.

-- 
Tim Cook
http://empyrean.scifi-fantasy.com

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