mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 05:21:09 +00:00
f8a30b42ce
* Add files via upload * Update secant_method.py * Remove unused import * Remove unused import
29 lines
533 B
Python
29 lines
533 B
Python
# Implementing Secant method in Python
|
|
# Author: dimgrichr
|
|
|
|
|
|
from math import exp
|
|
|
|
|
|
def f(x):
|
|
"""
|
|
>>> f(5)
|
|
39.98652410600183
|
|
"""
|
|
return 8 * x - 2 * exp(-x)
|
|
|
|
|
|
def SecantMethod(lower_bound, upper_bound, repeats):
|
|
"""
|
|
>>> SecantMethod(1, 3, 2)
|
|
0.2139409276214589
|
|
"""
|
|
x0 = lower_bound
|
|
x1 = upper_bound
|
|
for i in range(0, repeats):
|
|
x0, x1 = x1, x1 - (f(x1) * (x1 - x0)) / (f(x1) - f(x0))
|
|
return x1
|
|
|
|
|
|
print(f"The solution is: {SecantMethod(1, 3, 2)}")
|