Tim Cook <z99### [at] bellsouthnet> wrote:
> From the documentation:
>
> "abs(A) Absolute value of A. If A is negative, returns -A otherwise
> returns A."
>

Not too long ago, this very subject was addressed in a different thread..

<43401940$1@news.povray.org>

The level of confusion that abs() seems to generate among some users DOES
indicate, IMHO, that a "better" description is needed in the docs.  OR
perhaps just an example of its use! In fact, there are other "math"
keywords that could use examples as well, to help the non-mathematician.

Ken

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