Square Root Of 5
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Nevertheless, it can be approximated arbitrarily intently by such rational numbers. These two approximations are the respective elementary solutions of every Pell's equation, to which further options are algebraically related. Newton's methodology for finding the foundation of an arbitrary function. For a typical guess, the approximation converges quadratically (roughly doubles the number of appropriate digits at every step). 1 − φ . − φ ¯ n 5 . 1