Double Value Function - Python Programming Exercise

In this exercise, you will develop a Python function named "double" to calculate and return an integer that is twice its input. This exercise is perfect for practicing function definition and calling in Python. By implementing this function, you will gain hands-on experience in handling function definitions and calls in Python. This exercise not only reinforces your understanding of functions but also helps you develop efficient coding practices for managing user interactions.

 Category

Mastering Functions

 Exercise

Double Value Function

 Objective

Develop a Python function named "double" to calculate and return an integer that is twice its input. For example, double(7) should return 14.

 Example Python Exercise

 Copy Python Code
# Define the function double which calculates and returns twice the input integer
def double(num):
    return num * 2  # Return the double of the input number

# Main function to call double and display the result
def main():
    result = double(7)  # Call the double function with the number 7
    print("The double of 7 is {}".format(result))  # Print the result

# Call the main function to execute the program
main()

 Output

The double of 7 is 14

 Share this Python Exercise

 More Python Programming Exercises of Mastering Functions

Explore our set of Python Programming Exercises! Specifically designed for beginners, these exercises will help you develop a solid understanding of the basics of Python. From variables and data types to control structures and simple functions, each exercise is crafted to challenge you incrementally as you build confidence in coding in Python.

  •  Function Double with Mutable Parameter

    In this exercise, you will develop a Python function named "double_value" to calculate the double of an integer number and modify the data passed as an argument. Sinc...

  •  Function Swap with Mutable Parameters

    In this exercise, you will develop a Python program with a function called "swap" to exchange the values of two integer variables, which are passed by reference. This...

  •  Optimizing Local Variables in Functions

    In this exercise, you will develop a Python program with a function named "power" to compute the result of raising one integer to the power of another positive intege...

  •  Recursive Function for Calculating Powe

    In this exercise, you will develop a Python program with a function that computes the result of raising one integer to the power of another integer (e.g., 5 raised to...

  •  Calculating Fibonacci Sequence with a Function

    In this exercise, you will develop a Python program that uses a recursive function to determine a number in the Fibonacci sequence. In this series, the first two numb...

  •  Function to Alter a Character in a String

    In this exercise, you will develop a Python program with a function called "change_char" to alter a character at a specific position (0-based index) in a string, repl...