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Search: id:A086201
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| A086201 |
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Decimal expansion of 1/(2pi). |
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+0
25
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| 1, 5, 9, 1, 5, 4, 9, 4, 3, 0, 9, 1, 8, 9, 5, 3, 3, 5, 7, 6, 8, 8, 8, 3, 7, 6, 3, 3, 7, 2, 5, 1, 4, 3, 6, 2, 0, 3, 4, 4, 5, 9, 6, 4, 5, 7, 4, 0, 4, 5, 6, 4, 4, 8, 7, 4, 7, 6, 6, 7, 3, 4, 4, 0, 5, 8, 8, 9, 6, 7, 9, 7, 6, 3, 4, 2, 2, 6, 5, 3, 5, 0, 9, 0, 1, 1, 3, 8, 0, 2, 7, 6, 6, 2, 5, 3, 0, 8, 5, 9, 5, 6
(list; cons; graph; listen)
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OFFSET
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0,2
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COMMENT
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Contribution from Eric Desbiaux (moongerms(AT)wanadoo.fr), Dec 21 2008: (Start)
If a single hump of cycloid, arc length equal 8*radius (generating circle),
is inside a rectangle, width=2*radius and length=2*Pi*radius,
also the radius must be 1/(2*Pi),A086201,
to have (2/Pi), A060294, as semi arc of cycloid (arc=4/Pi=A088538)
and the rectangle... length=1, width=1/Pi.
I suppose that in 3D geometry, gliding along a cycloid, in all directions around, from a point A at the height of 1/Pi, give Pi*point B
(End)
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LINKS
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Eric Weisstein's World of Mathematics, Plouffe's Constant
Eric Weisstein's World of Mathematics, Pythagorean Triple
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EXAMPLE
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0.15915...
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MATHEMATICA
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RealDigits[N[1/(2*Pi), 6! ]][[1]] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 18 2009]
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CROSSREFS
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Sequence in context: A096789 A019705 A127414 this_sequence A010490 A021173 A063921
Adjacent sequences: A086198 A086199 A086200 this_sequence A086202 A086203 A086204
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KEYWORD
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nonn,cons
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Jul 12, 2003
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