Python | cmath.nan Constant

cMath module contains a number of functions which is used for mathematical operations for complex numbers. The cmath.nan Constant is used to get the floating-point nan (Not a Number).

Syntax: cmath.nan

Returns: Return the floating-point nan value.

Below examples illustrate the use of above function:

Example #1 :

Python3

# Python code to implement 
# the cmath.nan constant 

# importing "cmath" 
# for mathematical operations   

import cmath  

# Print the value of nan 

val = cmath.nan  

print(val)

Output:

nan

Example #2:

Python3

# Python code to implement 
# the cmath.nan constant 

# importing "cmath" 
# for mathematical operations   

import cmath  

# use of cmath.nan 

val = cmath.isnan(cmath.nan) 

print(val)