cMath module contains a number of functions which is used for mathematical operations for complex numbers. The cmath.isnan() function is used to check whether the value is nan (Not a Number), or not. The value passed in this function can be int, float, and complex numbers.
Syntax: cmath.isnan(x)
Parameter:This method accepts the following parameters.
- x :This parameter is the value to check for NaN.
Returns:This method returns a Boolean value.
Below examples illustrate the use of above function:
Example #1 :
# Python code to implement
# the isnan()function
# importing "cmath"
# for mathematical operations
import cmath
# using cmath.isnan() method
val = cmath.isnan(1 + 2j)
print(val)
Output:
False
Example 2:
# Python code to implement
# the isnan()function
# importing "cmath"
# for mathematical operations
import cmath
# using cmath.isnan() method
val = cmath.isnan(1 + float('nan'))
print(val)
Output:
True
