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Python/arithmetic_analysis/intersection.py at Upgrade-to-Python-3.8 · hackhit/Python · GitHub

24 lines (18 loc) · 522 Bytes

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))