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perryqh/gist:305850

Created February 16, 2010 20:04
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gistfile1.txt
def newton_raphson(f, f_deriv, start, precision = 5)
k_plus_one = start
k = 0.0
while ((k - 1) * 10**precision).to_f.floor != ((k_plus_one - 1) * 10**precision).to_f.floor
k = k_plus_one
k_plus_one = k - f.call(k) / f_deriv.call(k)
end
k_plus_one
end
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