Float Data Type

Float Data Type

In Python, the float data type is a number with a decimal point.

Floats may be printed using scientific notation.

type(23.0) # float  
type(3.2 + 2.5) # float  
2.0 ** 300 # 2.037035976334486e+90  

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Floats have limited precision. The final few decimal places after arithmetic can be unexpectedly wrong.

Why are floats inaccurate?

https://stackoverflow.com/questions/21895756/why-are-floating-point-numbers-inaccurate

Floats have limited size.

2.0 ** 3000 # OverflowError: (1, 'Numerical result out of range')