|
%I #26 Sep 08 2022 08:45:59
%S 1,8,1,3,4,3,0,2,0,3,9,2,3,5,0,9,3,8,3,8,3,4,1,0,6,9,9,1,4,0,0,6,3,0,
%T 8,5,2,4,4,3,1,7,1,0,0,6,1,6,0,5,6,7,8,6,0,6,5,4,7,4,2,2,3,7,4,6,7,1,
%U 2,5,1,0
%N Decimal expansion of sinh(1)*cosh(1).
%C Also decimal expansion of sinh(2)/2.
%C By the Lindemann-Weierstrass theorem, this constant is transcendental. - _Charles R Greathouse IV_, May 14 2019
%H G. C. Greubel, <a href="/A196932/b196932.txt">Table of n, a(n) for n = 1..10000</a>
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F Equals Product_{k>=1} 1 + 4/(k * Pi)^2. - _Amiram Eldar_, Jul 16 2020
%e sinh(1)*cosh(1) = sinh(2)/2 = 1.8134302039235093838341...
%t RealDigits[Sinh[2]/2, 10, 100][[1]] (* _G. C. Greubel_, Jun 10 2018 *)
%o (PARI) sinh(2)/2 \\ _Charles R Greathouse IV_, Apr 21 2016
%o (Magma) Sinh(2)/2; // _G. C. Greubel_, Jun 10 2018
%Y Cf. A001113, A073742, A073743.
%K nonn,cons
%O 1,2
%A _Omar E. Pol_, Oct 23 2011
%E a(25)-a(72) from _John W. Layman_, Oct 24 2011
|
