On Fri, May 29, 2015 at 11:33:18PM +1200, RussellMc wrote: > (FWIW: Its actually easier to remember Pi to more than the number of > useful digits, than the 'factors'. Agreed. > do you have some way of remembering those numbers easily ? :-) There are some good methods for that. For mere facts, I'm finding mnemosyne useful; an application of spaced repetition. One of my students gets a feed of physics questions and answers from me. --=20 James Cameron http://quozl.linux.org.au/ --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .