On Sun, 20 Feb 2011 00:08:58 -0800, Raymond Hettinger wrote: >>>> e = 10.0 ** -7; n = 0; z = c = complex(-0.75, e) >>>> while abs(z) < 2.0: > n += 1 > z = z * z + c > >>>> n * e > 3.1415926
Absolutely brilliant! That alone justifies including complex as a built- in type. *wink* > Compute π ± e by counting Mandlebrot set iterations :-) eps would be a better name than e. As I read it, π ± e would be some number between 0.423310825130748 and 5.859874482048838, which isn't a terribly impressive approximation :) BTW, I see the symbol in your post as π (pi), not ð (lowercase eth). -- Steven -- http://mail.python.org/mailman/listinfo/python-list