Lecture 3 Programs

x = 25
epsilon = 0.01
step = 0.1
guess = 0.0

while abs(guess**2-x) >= epsilon:
    if guess <= x:
        guess += step
    else:
        break

if abs(guess**2 - x) >= epsilon:
    print('failed')
else:
    print('succeeded: ' + str(guess))
'''
iteration = 0
while iteration < 5:
    count = 0
    for letter in "hello, world":
        count += 1
    print("Iteration " + str(iteration) + "; count is: " + str(count))
    iteration += 1 
    
    
iteration = 0
count = 0
while iteration < 5:
    for letter in "hello, world": 
        count += 1
    print("Iteration " + str(iteration) + "; count is: " + str(count))
    iteration += 1 
'''
'''
cube = 27
epsilon = 0.001
num_guesses = 0
low = 0
high = cube
guess = (high + low)/2.0
while abs(guess**3 - cube) >= epsilon:
    if guess**3 < cube :
        low = guess
    else:
        high = guess
    guess = (high + low)/2.0
    num_guesses += 1
print('num_guesses =', num_guesses)
print(guess, 'is close to the cube root of', cube)

cube = 27
epsilon = 0.01
guess = 0.0
increment = 0.0001
num_guesses = 0
while abs(guess**3 - cube) >= epsilon:
    guess += increment
    num_guesses += 1
print('num_guesses =', num_guesses)
if abs(guess**3 - cube) >= epsilon:
    print('Failed on cube root of', cube)
else:
    print(guess, 'is close to the cube root of', cube)

cube = 27
epsilon = 0.05
guess = 0.0
increment = 0.001
num_guesses = 0
while abs(guess**3 - cube) >= epsilon and guess <= cube:
    guess += increment
    num_guesses += 1
print('num_guesses =', num_guesses)
if abs(guess**3 - cube) >= epsilon:
    print('Failed on cube root of', cube)
else:
    print(guess, 'is close to the cube root of', cube)'''