cmath.isnan() Method in Python:
The cmath.isnan() method determines whether a value is a nan (Not a Number).
This method gives the following Boolean value: True if the value is nan, False otherwise.
Syntax:
cmath.isnan(x)
Parameters
x: This is Required. The value used to test for NaN
Return Value:
Returns a bool value that is True if any part of a complex number (real or imaginary) is NaN, otherwise False.
Examples:
Example1:
Input:
Given Complex Number = 3+4j
Output:
The result after applying isnan() method to the given complex number (3+4j) = False
Example2:
Input:
Given realpart = 5 Given imaginary part = 2
Output:
The result after applying isnan() method to the given complex number (5+2j) = False
Note: The above input format is for dynamic input.
cmath.isnan() Method with Examples in Python
Method #1: Using Built-in Functions (Static Input)
Approach:
- Import cmath module(for complex number operations) using the import keyword.
- Give the complex number as static input and store it in a variable.
- Pass the given complex number as an argument to the cmath.isnan() method that determines whether a given complex number’s value is nan (Not a Number) or not.
- Store it in another variable.
- Print the above result after applying isnan() method to the given complex number.
- The Exit of the Program.
Below is the implementation:
# Import cmath module(for complex number operations) using the import keyword. import cmath # Give the complex number as static input and store it in a variable. complexnumb = 3+4j # Pass the given complex number as an argument to the cmath.isnan() method # that determines whether a given complex number's value is nan (Not a Number)or not. # Store it in another variable. rslt = cmath.isnan(complexnumb) # Print the above result after applying isnan() method to the given complex number. print("The result after applying isnan() method to the given complex number", complexnumb, " = ") print(rslt)
Output:
The result after applying isnan() method to the given complex number (3+4j) = False
Similarly, try for the other examples
import cmath complexnumb = 10 + float('nan') rslt = cmath.isnan(complexnumb) print("The result after applying isnan() method to the given complex number = ") print(rslt)
Output:
The result after applying isnan() method to the given complex number = True
Method #2: Using Built-in Functions (User Input)
Approach:
- Import cmath module(for complex number operations) using the import keyword.
- Give the real part and imaginary part of the complex number as user input using map(), int(), split().
- Store it in two variables.
- Using a complex() function convert those two variables into a complex number and store them in a variable.
- Pass the given complex number as an argument to the cmath.isnan() method that determines whether a given complex number’s value is nan (Not a Number) or not.
- Store it in another variable.
- Print the above result after applying isnan() method to the given complex number.
- The Exit of the Program.
Below is the implementation:
# Import cmath module(for complex number operations) using the import keyword. import cmath # Give the real part and imaginary part of the complex number as user input # using map(), int(), split(). # Store it in two variables. realnumb, imaginarynumb = map(int, input( 'Enter real part and complex part of the complex number = ').split()) # Using a complex() function convert those two variables into a complex number. complexnumb = complex(realnumb, imaginarynumb) # Pass the given complex number as an argument to the cmath.isnan() method # that determines whether a given complex number's value is nan (Not a Number) # or not. # Store it in another variable. rslt = cmath.isnan(complexnumb) # Print the above result after applying isnan() method to the given complex number. print("The result after applying isnan() method to the given complex number", complexnumb, " = ") print(rslt)
Output:
Enter real part and complex part of the complex number = 5 2 The result after applying isnan() method to the given complex number (5+2j) = False