Python/arithmetic_analysis/intersection.py
Rafael García Cuéllar beafe3656f Re-design psnr.py code and change image names (#592)
* Change some Image File names & re-code the psnr algorithm (conserving both methods). Also Added new example.

* Selected psnr method and reformat some code from arithmetic_analysis
2018-11-05 18:19:08 +01:00

18 lines
469 B
Python

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))