Python Program for isfinite() Function

In the previous article, we have discussed Python Program for fsum() Function
isfinite() Function in Python:

The math.isfinite() method determines whether or not a number is finite.

If the specified number is a finite number, this method returns true; otherwise, it returns False.

Syntax:

math.isfinite(value)

Parameters:

Value: This is required. The value to be checked. A number (float/integer/infinite/NaN/finite) must be specified.

Return Value: It returns a boolean value. Returns True if x is finite and False if x is infinity or NaN.

Examples:

Example1:

Input:

Given Number = 20
Given number = -100
Given Number = math.pi
Given value = NaN
Given value = inf

Output:

Checking if the above given number 20 is finite or not : True
True
True
False
False

Example2:

Input:

Given Number = 10000
Given value = -math.inf
Given value = nan

Output:

Checking if the above given number 10000 is finite or not : True
False
False

Program for isfinite() Function in Python

Using Built-in Functions (Static Input)
Using Built-in Functions (User Input)

Method #1: Using Built-in Functions (Static Input)

Approach:

Import math module using the import keyword.
Give the number as static input and store it in a variable.
Apply math.isfinite() function to the given number to check if the given number is finite or not.
Store it in another variable.
Print the above result.
Similarly, check for the other values and print the result.
The Exit of Program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the number as static input and store it in a variable.
gvn_numb = 20
# Apply math.isfinite() function to the given number to check if the given number
# is finite or not.
# Store it in another variable.
rslt = math.isfinite(gvn_numb)
# print the above result.
print("Checking if the above given number",
      gvn_numb, "is finite or not :", rslt)
# similarly check for the other values 
print(math.isfinite(-100))
print(math.isfinite(math.pi))
print(math.isfinite(float('NaN')))
print(math.isfinite(float('inf')))

Output:

Checking if the above given number 20 is finite or not : True
True
True
False
False

Method #2: Using Built-in Functions (User Input)

Approach:

Import math module using the import keyword.
Give the number as user input using the int(input()) function and store it in a variable.
Apply math.isfinite() function to the given number to check if the given number is finite or not.
Store it in another variable.
Print the above result.
Similarly, check for the other values and print the result.
The Exit of Program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the number as user input using the int(input()) function and store it in a variable.
gvn_numb = int(input('Enter some random number = '))
# Apply math.isfinite() function to the given number to check if the given number
# is finite or not.
# Store it in another variable.
rslt = math.isfinite(gvn_numb)
# print the above result.
print("Checking if the above given number",
      gvn_numb, "is finite or not :", rslt)
# similarly check for the other numbers
b = int(input('Enter some random number = '))
print(math.isfinite(b))

Output:

Enter some random number = -1000
Checking if the above given number -1000 is finite or not : True
Enter some random number = -19999
True

Read all the mathematical functions available in Python and understand how to implement them in your program by using the tutorial of Python Mathematical Methods Examples.