Python - cmath.isnan() function

Python | cmath.nan Constant

Last Updated : 01 Jun, 2020

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)

Output:

True

Python - cmath.isnan() function

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