## newton method

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```
"""Newton's Method."""
# Newton's Method - https://en.wikipedia.org/wiki/Newton%27s_method
# function is the f(x) and function1 is the f'(x)
def newton(function, function1, startingInt):
x_n = startingInt
while True:
x_n1 = x_n - function(x_n) / function1(x_n)
if abs(x_n - x_n1) < 10 ** -5:
return x_n1
x_n = x_n1
def f(x):
return (x ** 3) - (2 * x) - 5
def f1(x):
return 3 * (x ** 2) - 2
if __name__ == "__main__":
print(newton(f, f1, 3))
```