Pfox wrote:
> 
> for example, in advanced math one can graph functions on an x dimension
> going from negative infinity to zero to infinity, against a y dimension
> also going from - to + infinity, or one can graph some functions with an x
> from - to + infinity and a y from "-i * infinity" to "i * infinity". where
> 'i' is
> the square root of  negative 1.
> I was wondering, pov-ray cant normally handle functions which return
> square roots of negative numbers, if however there was some way to graph
> these as 'i's on an imaginary number axis then the problem could be
> avoided

IMHO such a feature would be too special to be of general interest,
in particular, because you can graph such functions by (manually)
calculating the real or imaginary part of the function. 

Thomas

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