On Wed, Jan 20, 2010 at 04:32:07PM -0500, Phil Stracchino wrote: > On 01/20/10 16:17, Sridhar Ayengar wrote: > > I especially like the actual one: > > _ > > 0.9 = 1 > > > > True, but counterintuitive. > > I've never encountered that overbar notation. What is it? 0.9999999999999999999999999999999999...