Math irregularity ... is this normal?

[Some One Else]

Hello!

I just compiled and installed Python 2.2.1 on Linux-Mandrake 8.0.  When I 
do the following:

>>> 2/5.0
0.40000000000000002

In  'Learning Python', a similar example says I should get the more logical 
answer of 0.4.  Did I install something wrong? I can see where this could 
result in creeping math errors.

Thanks!

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