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Python isnan() Function

isnan() function exists in Standard math Library of Python Programming Language and is used to determine whether a given parameter is a valid number or not.
 
If given number x as parameter is a valid Python number (Positive or Negative), isnan() function returns False.
If given number x as a parameter is NaN (Not a Number), isnan() returns True.
 

Syntax of isnan() in Python

The syntax of isnan() function in python is:
math.isnan( x )

 

Parameters of Python isnan() Function

x is any valid Python data type. This parameter is required.

 

Python isnan() Function Compatibility

Python 2.x – Yes
Python 3.x – Yes

 

Return Value of Python isnan() Function

The return value of isnan() function is either True or False.

 

Python isnan() Function Example

Output of Python isnan() function

False
False
False
False
False

 

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