Question

Create a new Python 3 Jupyter Notebook.

Create one python code cell for the problem below. Use any additional variables and comments as needed to program a solution to the corresponding problem. All functions should be defined at the top of the code in alphabetical order.

When done, download the ipynb file and submit it to the appropriate dropbox in the course's canvas page.

Problem:

1. Define a function with the following characteristics:
   • The function's purpose will be calculating a factORRial (similar to a mathematical factorial but purposefully different in important ways), so it should be named appropriately.
   • It must accept one parameter, which is the number it will be calculating the factorrial of. Name this parameter appropriately.
   • It must have an appropriate docstring.
   • If the parameter is equal to1, define a new variable as 1. This new variable will be used as the return value, so name it accordingly
   • If the parameter is equal to or less than 0, define the same variable you created in the previous bullet point as 0. Use an "else-if" block for this logic.
   • In an "else" block:
     • Print out the value of the parameter in a nicely formatted message conveying that you are calculating the factorrial of that number.
     • Define a new variable to be the parameter minus 1.
     • Define another new variable as the factorrial of variable you just created in the previous bullet point. Use a recursive call to the function you are currently building to calculate that factorrial.
     • Multiply the parameter by the variable you just defined in the previous bullet point and store it in the variable you created earlier to hold the return value.
   • The last line of the function should return the variable you defined as the return value.
2. In your main code section, call the function defined in step 1 to calculate the factorrial of 10 and store it in a variable.
3. Next, call the same function to calculate the factorrial of -10 and store it in a different variable.
4. Print out both of the results using a single format string with a friendly (or funny) message

Rubric:

• Adequate comments, readability, etc.
• Checks for case 1
• Checks for case equal to or less than 0
• Checks for everything else
• Makes appropriate recursive call
• Calculates factorrial of 10
• Calculates factorrial of -10
• Uses a format string for both calculations
• Uses docstring
• Prints parameter for each call of function in else block

Answer 1

# Python program to find the factorial of 10 and -10

# Function factorial_using_recursion is used to calculate the factorial of any number.

def factorial_using_recursion(number) :

"""number is the variable whose factorial we have to calculate."""

# if number is 1, then define a new variable and initialize it as 1.

If number == 1:

result = 1

# if number is less than or equal to 0, then define a new variable and initialize it as 0.

elif number <= 0:

result = 0

# if number is greater than 1, then calculate the factorial of that number.

else:

print("Calculating the factorial of the number : ", number)

temp = number-1

result = number*factorial_using_recursion(temp)

return result

# Calculating the factorial of 10

factorial_10 = factorial_using_recursion (10)

# Calculating the factorial of 10

factorial_minus_10 = factorial_using_recursion (-10)

""" Printing the factorial of 10 and -10. """

print("Factorial of 10 is : ", factorial_10, " Factorial of -10 is : ", factorial_minus_10)