Francois Labreque <fla### [at] videotronca> wrote:
> The syntax highlighter used in the various versions of POV for windows
> thinks atan() is a valid function.
>
> Have I discovered a new bug? Should I post to povray.bugreports?
No - atan() *is* invalid. POV-Ray 3.1 only supports the atan2() function,
with instructions in the docs to use atan2(A, 1) if you want something that
acts like regular atan().
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