I've installed Pov 3.1a yesterday, and after a few tests I've encountered a problem:
If you use atan2 the renderer reports a error in the case for the Parameters A and B are zero (i.e. atan (0,0) ) In the previous version of Pov (3.02) this error did't occur, here atan2(0,0) calculates to 0.
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POV INFO
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Pov Version: PovRay for Windows v3.1a
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SYSTEM INFO
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Operatingsystem: Windows 95 4.00.950 B OSR-2 with USB supply
Processor: AMD K6 300 3D Now!
Memory: 64 MB
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PROBLEM CODE
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atan2(0,0)
-- ------------------------------------------------------------------------------ Axel Baune Phone: +49 731 502 4242 Department of Neural Information Processing Fax: +49 731 502 4156 University of Ulm 89069 Ulm email: abaune@neuro.informatik.uni-ulm.de Germany URL (privat): http://www.uni-ulm.de/~abaune ------------------------------------------------------------------------------