Python: Square the elements of a list using map()

Last update on April 22 2025 12:52:49 (UTC/GMT +8 hours)

5. Square Elements Map

Write a Python program to square the elements of a list using the map() function.

Sample Solution:

Python Code :

# Define a function named square_num that calculates the square of a given number 'n'
def square_num(n):
    return n * n

# Create a list named 'nums' containing integer elements
nums = [4, 5, 2, 9]

# Print the original list of numbers
print("Original List: ", nums)

# Use the map function to apply the square_num function to each element of 'nums'
result = map(square_num, nums)

# Print a message indicating the operation to be performed
print("Square the elements of the said list using map():")

# Print the result of the map operation as a list
print(list(result))

Sample Output:

Original List:  [4, 5, 2, 9]
Square the elements of the said list using map():
[16, 25, 4, 81]

For more Practice: Solve these Related Problems:

Write a Python program to square each even element in a list and leave odd elements unchanged using map.
Write a Python program to square every element and then subtract one from each result using the map() function.
Write a Python program to square each element and then compute its remainder when divided by 10 using map.
Write a Python program to square each number in a list and convert the squared values into strings using map.

Go to:

Previous: Write a Python program to create a list containing the power of said number in bases raised to the corresponding number in the index using Python map.
Next: Write a Python program to convert all the characters in uppercase and lowercase and eliminate duplicate letters from a given sequence. Use map() function.

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.