Learn the Bisection Method by Finding the Square Root of a Number - Step 17

Tell us what’s happening:

I have used the root is None in the if and followed the instructions. Still no success

``````def square_root_bisection(square_target, tolerance=1e-7, max_iterations=100):
if square_target < 0:
raise ValueError('Square root of negative number is not defined in real numbers')
if square_target == 1:
root = 1
print(f'The square root of {square_target} is 1')
elif square_target == 0:
root = 0
print(f'The square root of {square_target} is 0')

else:
low = 0
high = max(1, square_target)
root = None

for _ in range(max_iterations):
mid = (low + high) / 2
square_mid = mid**2

if abs(square_mid - square_target) < tolerance:
root = mid
break

elif square_mid < square_target:
low = mid
else:
high = mid

# User Editable Region

if root is None:
print(f'Failed to converge within {max_iterations} iterations.')

# User Editable Region

``````

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36`
Check your indentation. Needs to be outside the `for` loop, but inside the `else`.