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 :
Python3
# 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:
Python3
# 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
