Robert Kern wrote: > That's not what he's asking about. He's asking why his Python 2.3 rounds > 0.0225 *up* to 0.023 while his Python 2.4 rounds *down* to 0.022. It's > the change in behavior that he's concerned with and isn't just the usual > floating point problem.
You can't rely on either being true, given the nature of the inexact representation of the number, and the fact that python ignores quite a lot of the IEEE stuff. Different optimisations (particularly with the 80 bit floating point registers in x86), will lead to different represenations. Any code which relies on a particular behaviour is broken. Jeremy -- Jeremy Sanders http://www.jeremysanders.net/ -- http://mail.python.org/mailman/listinfo/python-list
