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A093588
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Decimal expansion of -1/8 + 4/Pi^2.
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0
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2, 8, 0, 2, 8, 4, 7, 3, 4, 5, 6, 9, 3, 5, 1, 0, 8, 5, 7, 7, 5, 5, 1, 7, 8, 5, 2, 8, 3, 8, 9, 1, 0, 5, 5, 5, 6, 1, 7, 4, 3, 5, 0, 9, 8, 6, 8, 8, 9, 8, 6, 1, 9, 5, 3, 8, 2, 4, 3, 6, 1, 2, 7, 5, 7, 6, 6, 9, 2, 4, 8, 3, 8, 4, 8, 9, 4, 1, 7, 6, 4, 7, 6, 4, 8, 3, 7, 0, 9, 5, 7, 0, 2, 4, 8, 7, 3, 5, 0, 4
(list;
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OFFSET
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0,1
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COMMENTS
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Probability that a triangle picked at random in a unit disk is acute.
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REFERENCES
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Clifford A. Pickover, The Math Book, From Pythagoras to the 57th Dimension, 250 Milestones in the History of Mathematics, Sterling Publ., NY, 2009, page 476.
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LINKS
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EXAMPLE
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0.280284734...
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MATHEMATICA
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RealDigits[ 4/Pi^2 - 1/8, 10, 105][[1]]
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PROG
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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