Write a function multiply_by_two() that takes a number as input and prints its double.

 

def multiply_by_two(number):

    """This function takes a number and prints its double."""

    result = number * 2  

    print("Double of", number, "is", result)  

multiply_by_two(5)

multiply_by_two(10)

#source code --> clcoding.com 

Code Explanation:

Function Definition

def multiply_by_two(number):

def defines a function in Python.

multiply_by_two is the name of the function.

(number) is the parameter that the function accepts when called.

Function Docstring (Optional but Recommended)

"""This function takes a number and prints its double."""

This is a docstring, used for describing what the function does.

Helps in understanding the function when reading or debugging the code.

 Multiply the Input by 2

result = number * 2

The input number is multiplied by 2 and stored in the variable result.

Example Calculation:

If number = 5, then result = 5 * 2 = 10.

If number = 10, then result = 10 * 2 = 20.

Print the Result

print("Double of", number, "is", result)

This prints the original number and its double.

Example Output:

Double of 5 is 10

Double of 10 is 20

Calling the Function

multiply_by_two(5)

multiply_by_two(10)

multiply_by_two(5) passes 5 as input, prints Double of 5 is 10.

multiply_by_two(10) passes 10 as input, prints Double of 10 is 20.