Python float to int conversion

by 
2.51 * 100 = 250.999999999997

The int() function simply truncates the number at the decimal point, giving 250. Use 

int(round(2.51*100))

to get 251 as an integer. In general, floating point numbers cannot be represented exactly. One should therefore be careful of round-off errors. As mentioned, this is not a Python-specific problem. It’s a recurring problem in all computer languages.

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