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))
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
math.isnan(x)
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 |
