[Tutor] cube root

[col speed]

Hi there, just a quick one.
Is there a way to obtain cube roots in python?
I have been trying:
math.pow(n,1.0/3)
This works with some, but with 64, for example I get:
>>> pow(64,1.0/3)
3.9999999999999996
However:
>>> 4**3
64
Any ideas?
Thanks
Colin
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