Visible Lattice Points and Approximations to Pi

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http://demonstrations.wolfram.com/Vis... • The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. • A lattice point P=(x,y) is visible from the origin O=(0,0) if there is no other lattice point on the segment OP, which happens if and only if GCD(x,y)=1. The proportion of such lattice points is 6/?^2?0.6079271018540267`. This Demonstration uses that fa... • Contributed by: Chingis Matayev • Audio created with WolframTones: • http://tones.wolfram.com

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