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- """from math import exp, log
- def iterate(x):
- #return x - (2.0*x - exp(-x))/(2.0+exp(-x)) #Newton
- #return 0.5*exp(-x) #F_1
- return (-1)*log(2.0*x) #F_2
- x = 0.9
- for i in range(10):
- print (i, x)
- x = iterate(x)
- """
- from math import log
- f = lambda x: -log(2*x)
- x = 0.35173371124919582602
- #x = 0.3517337112491958260249093009299510651715
- for i in range(200):
- print("x 0.35173371124919582602")
- print("x 0.3517337112491958260249093009299510651715")
- print("%i %.30f" % (i, x))
- x = f(x)
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