Floating point errors?

[David Lees]

Complexity has nothing to do with rounding.  Try:

>>> 2.3-2.0
0.29999999999999982


Rounding is exactly the issue and this looks like the old classic
problem, namely rational numbers in one base (say 10) can be irrational
in another base (say 2)

david lees



Ben Allfree wrote:
> 
> Using Python 2.1 on Win32:
> 
> int( (2.3 - 2) * 1000 ) = 299
> int( .3 * 1000 ) = 300
> 
> What am I missing? The first one seems too simple to expect a rounding
> error :)