1. area.py
2. input_demo.py
3. range_analysis.py
4. simple_for.py
5. using_range.py

# Finds the area of a rectangle
# by CS111 class

print("This program calculates the area of a rectangle.")

width = eval(input("Enter the width: "))
height = eval(input("Enter the height: "))


# To find the area of a rectangle, you multiply the rectangle's width by the height.
area = width * height


# display the results (the area)
#print("The rectangle's width is", width)
#print("The rectangle's height is", height)
print("The area of the rectangle is:", area)

# Demonstrate numeric and string input
# by Sara Sprenkle for CS111

color = input("What is your favorite color? ")
print("Cool!  My favorite color is _light_", color, "!")

rating = eval(input("On a scale of 1 to 10, how much do you like Ryan Gosling? "))
print("Cool!  I like him", rating*1.8, "much!")

# Example of for loops using range
# by Sara Sprenkle

# Question: what does range do?
for i in range(10):
   squared = i * i
   print(i , "^2 =", squared)

print(i)

# QUESTION FOR CLASS:
# How is i changing each time through the loop?

# What happens if you change the variable from
#	i to some other variable name?

# Examples of for loops using range
# by Sara Sprenkle

# The "chorus" gets repeated 3 times
for i in range(3):
    print("You say 'hello'")
    print("And, I say 'goodbye'...")

    
num_repetitions = 5
   
print()

# for loop with only one statement that gets repeated
for x in range(num_repetitions): print("Repeat the chorus!")

# Examples of using range, with different numbers of parameters
# by Sara Sprenkle
#

print("------------ range(10) ------------")
for x in range(10):
    print(x)

print("----------- range(5,10) -----------")
for y in range(5, 10):
    print(y)

print("----------- range(1,10,1) -------------")
for x in range(1, 10, 1):
    print(x)

    
# What happens if step is negative?
# What happens if stop < start?