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- # Bruk import math heller enn astropy og masse piss, it has all you need
- import math
- def f(x):
- return x**3 - 3.0
- def df(x):
- return 3*x**2
- def newtonRaphson(f, df, x, nmax, tol):
- #x0 er startverdi, nmax er max antall iterasjoner
- #x = x0 - (f(x0)/df(x0))
- for i in range(nmax):
- x = x - f(x)/(df(x))
- if (f(x)==0):
- return x
- elif (df(x)==0):
- break
- return x
- x_start = 2.5
- max_iter = 3
- eps = 1.E-1
- eps2 = 9.E-6
- root = newtonRaphson(f, df, x_start, max_iter, eps)
- def g(x):
- # Igjen -> math.log(variable, base), se dokumentasjonen
- return 5*x + math.log(x, math.e) - 10000
- def dg(x):
- return 5 + (1/x)
- print(root)
- print(newtonRaphson(g, dg, 1500 , 10, eps2))
- # Wehuu it works
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