chapter 8.3.5 of megapov documentation (about function pattern):
"valid function are: sin, cos, tan, radians, degrees, floor, ceil, pi"
but I've checked other functions and it works
in version 0.5 and in version 0.6

at thread "Fished onion" at p.b.i
you can find use of ln() and atan2()

anybody know why it is undocumented ?
or why there is not such words "and other functions"
at end of list in documentation ?
can I use any povray function/expresion with numeric result ?

ABX

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