map214nw.py

import math as m
# metodo de newton-raphson
def newton_raphson(x0,f,df, eps):
    print "{0:2} {1:20}\n".format("N", "raiz")
    N=0
    x1=x0 - f(x0)/df(x0)
    while (df(x0)!=0) & (abs(f(x0))>eps):
        x1=x0 - f(x0)/df(x0)
        if abs(x1-x0)<= eps : break
        else:
            x0=x1
            N+=1
        print  "{0:2} {1:20}\n".format( str(N) , str(x1))    
    return x1