1. ./average2.py
2. ./average2_withmain.py
3. ./practice1.py
4. ./practice2.py
5. ./practice3.py

# Program to find the average of two numbers
# by Sara Sprenkle

def average2(num1, num2):
    """
    Parameters: two numbers to be averaged
    Returns the average of two numbers
    """
    average = (num1 + num2)/2
    return average
    
print("This program will find the average of two numbers.")
print()

num1 = eval(input("Enter the first number: " ))
num2 = eval(input("Enter the second number: "))

# calculate the average of the two numbers
average = average2(num1, num2)

print("The average of", num1, "and", num2, "is", average)

# Program to find the average of two numbers.
# Demonstrates using a main function.
# by Sara Sprenkle

def main():
    print("This program will find the average of two numbers.")
    print()
    
    num1 = eval(input("Enter the first number: " ))
    num2 = eval(input("Enter the second number: "))
    
    # calculate the average of the two numbers
    average = average2(num1, num2)
    
    print("The average of", num1, "and", num2, "is", average)

def average2(num1, num2):
    """
    Parameters: two numbers to be averaged
    Returns the average of two numbers
    """
    average = (num1 + num2)/2
    return average
    
main()

# Exercising your knowledge of variable scope.
#

def main():
    num = eval(input("Enter a number to be squared: "))
    squared = square(num)
    print("The square is", squared)

def square(n):
    return n * n

main()

# Exercising your knowledge of variable scope.

def main():
    num = eval(input("Enter a number to be squared: "))
    square(num)
    print("The square is", computed)

def square(n):
    computed = n*n
    return computed

main()

# Exercising your knowledge of variable scope.

def main():
    num = eval(input("Enter a number to be squared: "))
    squared = square(num)
    print("The square is", squared)
    print("The original num was", n)

def square(n):
    return n * n

main()