I was using python as calculator when I enter :
35.5 - 29.58

I am surprising when python give me a result with many decimals:
5.920000000000002

I tried to change one number :
35.5 - 29.57
The result is correct : 5.93

The error is present again when I tried to inverse numbers (29.57-35.5).

The error is again present when I tried to use 35.50 in place of 35.5.



I tested on python 2.7 and 3.4, compiled with gcc 4.9.3, on Gentoo.


Thanks for all who contribute to this good project which is Python !

Hogren