On Thu, Jan 8, 2015 at 3:09 AM, Steven D'Aprano <steve at pearwood.info> wrote: > I can remember the first six digits of pi, 3.1415... Aside: That's technically an incorrect approximation. Since the next digit is a 9, you ought to round that up... or just use 3.14159, stopping before the 2 and thus correctly rounding down. ChrisA