x = 25 epsilon = 0.01 numGuesses = 0 ans = 0.0 while abs(ans**2 - x) = epsilon and ans = epsilon: print 'Failed on square root of', x else: print ans, 'is close to square root of', x The way I am understanding this line of code is that in the while line of code, abs(ans**2 - x) = epsilon, this statement is false so the while operation terminates before it can continue right? But both epsilon and ans have to be true for it to loop. Please someone help me out on this one.

Question

x = 25
epsilon = 0.01
numGuesses = 0
ans = 0.0
while abs(ans**2 - x) >= epsilon and ans <= x:
    ans += 0.00001
    numGuesses += 1
print 'numGuesses =', numGuesses
if abs(ans**2 - x) >= epsilon:
    print 'Failed on square root of', x
else:
    print ans, 'is close to square root of', x

The way I am understanding this line of code is that in the while line of code, abs(ans**2 - x) >= epsilon, this statement is false so the while operation terminates before it can continue right? But both epsilon and ans have to be true for it to loop. Please someone help me out on this one.

anonymous · Answer

I finally figured it out. abs will make a -25.0 = 25.0