Python float to int conversion

Question

Basically, I\'m converting a float to an int, but I don\'t always have the expected value.

Here\'s the code I\'m executing:

x = 2.51

print(\"         


        

Answer 1

Languages that use binary floating point representations (Python is one) cannot represent all fractional values exactly. If the result of your calculation is 250.99999999999 (and it might be), then taking the integer part will result in 250.

A canonical article on this topic is What Every Computer Scientist Should Know About Floating-Point Arithmetic.