> Computers also =A0solved Shakespeare's equation: > 2B OR NOT 2B =3D -1 Very good! I explained that to my wife. She was suitably non-plussed. But. it must be moving at the speed of light, as the answer is always -1 for all numbers in all bases EXCEPT in unary. Unary is the number system that photons count in. Russell. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .