[Carl Banks] > > You're talking about machine epsilon? I think everyone else here is > > talking about a number that is small relative to the expected smallest > > scale of the calculation.
That was also my reading of the OP's question. The suggestion to use round() was along the lines of performing a quantize or snap-to-grid operation after each step in the calculation. That approach parallels the recommendation for how to use the decimal module for fixed point calculations: http://docs.python.org/library/decimal.html#decimal-faq Raymond -- http://mail.python.org/mailman/listinfo/python-list
