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%I #17 Oct 01 2022 13:55:12
%S 2,8,4,2,5,8,2,2,4,6,5,1,3,4,3,0,7,0,7,6,1,7,2,7,2,8,9,0,1,1,5,0,5,2,
%T 9,2,6,5,6,5,2,5,1,5,0,7,5,5,1,7,2,8,6,0,7,7,9,3,3,0,4,8,9,4,8,4,4,2,
%U 5,5,1,8,5,5,1,3,3,7,3,8,2,1,6,6,2,3,0,0,1,0,7,1,5,8,7,7,2,8,6,0,4,9
%N Decimal expansion of ((5 - 2*sqrt(2))*Pi)/24.
%C Solution to the Kakeya needle problem.
%H G. C. Greubel, <a href="/A093823/b093823.txt">Table of n, a(n) for n = 0..10000</a>
%H Vincent Borrelli, Jean-Luc Rullière, <a href="http://catalogue-editions.ens-lyon.fr/fr/livre/?GCOI=29021100106220">En cheminant avec Kakeya, Voyage au cœur des mathématiques</a>, ENS Éditions, Lyon 2014 (in French) (see p. 119).
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KakeyaNeedleProblem.html">Kakeya Needle Problem</a>
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%e 0.284258224...
%t RealDigits[((5-2*Sqrt[2])*Pi)/24,10,120][[1]] (* _Harvey P. Dale_, Sep 27 2015 *)
%o (PARI) ((5 - 2*sqrt(2))*Pi)/24 \\ _Michel Marcus_, Sep 22 2014
%o (Magma) SetDefaultRealField(RealField(100)); R:= RealField(); ((5-2*Sqrt(2))*Pi(R))/24; // _G. C. Greubel_, Oct 01 2018
%K nonn,cons,easy
%O 0,1
%A _Eric W. Weisstein_, Apr 16 2004
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