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Python math.isnan() Method

Python math.isnan() Method

❮ Math Methods

Example

Check whether a value is NaN or not:

# Import math Library

import math

# Check whether some values are NaN or not

print (math.isnan (56))

print (math.isnan (-45.34))

print (math.isnan (+45.34))

print (math.isnan (math.inf))

print (math.isnan (float("nan")))

print (math.isnan (float("inf")))

print (math.isnan (float("-inf")))

print (math.isnan (math.nan))

Try it Yourself » Definition and Usage

The math.isnan() method checks whether a value is NaN (Not a Number), or not.

This method returns True if the specified value is a NaN, otherwise it returns False.

Syntax Parameter Values Parameter Description x Required. The value to check Technical Details Return Value: A bool value, True if the value is NaN, otherwise False Python Version: 3.5

❮ Math Methods

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