main.py

# User defined function
# Assumptions of the function:
#   - Domain: ℝ

def func(x: float) -> float:
    return x**2 - 1.7**2

# The main root finding function
def find_roots():

    # Start by two points (assume atm that f(a)*f(b) < 0 )
    # assume guess_1 < guess_2
    guess_1 = 0.0
    guess_2 = 3.0

    print('negative' if func(guess_1)*func(guess_2) < 0 else 'non-negative')

    tolerance = 0.0001
    diff = guess_2 - guess_1

    while diff > tolerance:

        diff = guess_2 - guess_1

        # Converge towards the root
        mid_point = (guess_1 + guess_2 ) / 2

        if (func(guess_1)*func(mid_point) < 0):
            guess_2 = mid_point
        else:
            guess_1 = mid_point


    return mid_point

def main():
    print(find_roots())

if __name__ == '__main__':
    print("Running main")
    main()