"Anton81" wrote:
> When I do simple calculation with float values, they are rarely exactly
> equal even if they should be. What is the threshold
http://www.lahey.com/float.htm
http://docs.python.org/tut/node16.html
> and how can I change it?
you cannot.
> e.g. "if f1==f2:" will always mean "if abs(f1-f2)<1e-6:"
use your own equal function, e.g.
def equal(a, b):
return abs(a - b) < 1e-6
if equal(f1, f2):
...
(see the "safe comparision" section of the lahey.com paper
for better ways to test for "approximate equality")
</F>
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