>> That is a good one. And as one who happens to know where it comed from, >> I wonder how many else who knows the origin of that quote... :-) > Are there really persons (of some education) that don't? Many. I didn't expect my wife to - I checked - she didn't. But she is intelligent, has a BSc and works in a technical professional role. It's just that that area has about zero overlap with her involvements or interest or education. I once, prior to it being solved, thought that I MAY have an inductiin like process which would / might have yielded an answer. It would have been far far far smaller than the final solution, but it to would not have fitted in Fermat's margin. I'd describe my approach here were it not for the fact that I can't fit in the time required due to my current urgent priorities :-). Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist