%I #20 Nov 09 2024 09:23:41
%S 1,9,0,9,8,5,9,3,1,7,1,0,2,7,4,4,0,2,9,2,2,6,6,0,5,1,6,0,4,7,0,1,7,2,
%T 3,4,4,4,1,3,5,1,5,7,4,8,8,8,5,4,7,7,3,8,4,9,7,2,0,0,8,1,2,8,7,0,6,7,
%U 6,1,5,7,1,6,1,0,7,1,8,4,2,1,0,8,1,3,6,5,6,3,3,1,9,5,0,3,7,0,3,1,4,7,2,8,7
%N Decimal expansion of 6/Pi.
%C 6/Pi = Volume of the cuboid (If L1>L2>L3) / Volume of the inscribed ellipsoid.
%C 6/Pi = Volume of the cuboid (If L1>(L2=L3)) / Volume of the inscribed spheroid.
%C 6/Pi = Volume of the regular hexahedron (or cube) / Volume of the inscribed Sphere.
%C 6/Pi = 1 / Arc of 30 degrees.
%C 6/Pi = Volume of the cuboid (If L1<(L2=L3)) / Volume of the inscribed spheroid.
%C 6/Pi = Surface area of the regular hexahedron (or cube) / surface area of the inscribed sphere.
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F Equals Product_{k>=1} (2k+1)^3 / ( (2k)^2*(2k+3) ). - _Federico Provvedi_, Nov 09 2024
%e 1.90985931710274402922660516047... .
%t RealDigits[N[6/Pi, 200]] - _Erich Friedman_, Mar 22 2008
%o (PARI) 6/Pi \\ _Charles R Greathouse IV_, Dec 31 2011
%Y Cf. A049541, A060294, A089491, A088538, A086201, A059956.
%K nonn,cons,changed
%O 1,2
%A _Omar E. Pol_, Aug 26 2007, Nov 02 2007
%E More terms from _Erich Friedman_, Mar 22 2008