import math

def intersection(function,x0,x1): #function is the f we want to find its root and x0 and x1 are two random starting points
 x_n = x0
 x_n1 = x1
 while True:
 x_n2 = x_n1-(function(x_n1)/((function(x_n1)-function(x_n))/(x_n1-x_n)))
 if abs(x_n2 - x_n1) < 10**-5:
 return x_n2
 x_n=x_n1
 x_n1=x_n2

def f(x):
 return math.pow(x , 3) - (2 * x) -5

if __name__ == "__main__":
 print(intersection(f,3,3.5))