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Topic: Approximation to square roots
Replies: 7   Last Post: Jan 19, 2014 10:01 AM

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Registered: 1/16/14
Approximation to square roots
Posted: Jan 16, 2014 8:33 PM
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Is this a known theorem?
"For each N,there exists a rational x / y such that the difference x / y - Sqr(N) is less than 1 / [2N^2.Sqr(N)]. x, y is a solution of Pell´s equation x^2 + N.y^2 = 1 ".

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