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%I #23 Aug 21 2023 11:47:12
%S 8,4,8,0,4,8,0,9,6,1,5,6,4,2,5,9,7,0,3,8,6,1,7,6,1,7,8,6,9,0,3,8,6,4,
%T 4,8,7,2,8,7,1,2,0,5,5,9,5,6,2,4,5,3,5,9,0,5,1,8,6,1,9,6,1,1,2,8,3,1,
%U 3,2,3,1,5,9,6,4,2,4,9,2,2,8,4,8,0,4,8,5,2,9,0,4,4,7,2,7,6,9,7
%N Decimal expansion of sine of 58 degrees.
%C An algebraic number of degree 12 and denominator 2. - _Charles R Greathouse IV_, Aug 27 2017
%H Ivan Panchenko, <a href="/A019867/b019867.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Al#algebraic_12">Index entries for algebraic numbers, degree 12</a>
%F Equals cos(8*Pi/45) = 2F1(23/30,7/30;1/2;3/4) / 2. - _R. J. Mathar_, Oct 27 2008
%F Equals 2*A019838*A019870. - _R. J. Mathar_, Jan 17 2021
%e 0.84804809...
%t RealDigits[Sin[58 Degree],10,120][[1]] (* _Harvey P. Dale_, Apr 24 2018 *)
%o (PARI) cos(8*Pi/45) \\ _Charles R Greathouse IV_, Aug 27 2017
%K nonn,cons
%O 0,1
%A _N. J. A. Sloane_
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