>>Which is faster (in an isosurface)?
>>
>>pow(x, 2) or x*x?
>>
>>(Ditto for x^3.)
> 
> 
> The speed will be identical for all of these.  Further, note that all
> constant integer powers up to eight will be optimised such to take as few
> multiplications as possible, i.e. a power of four only takes two
> multiplications instead of four, and a power of eight only takes three
> multiplications.

Excellent.

POV-Ray Rocks!(tm)

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