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%I #7 Aug 06 2019 20:06:28
%S 7,4,6,8,5,9,3,3,3,9,8,7,6,5,0,2,2,6,6,8,3,0,8,0,0,0,4,3,4,2,1,0,4,6,
%T 4,4,7,5,0,4,9,6,0,1,5,4,4,5,4,6,8,1,5,4,4,3,4,0,6,8,7,1,1,3,2,9,9,2,
%U 6,8,0,7,4,4,1,7,9,8,9,3,9,0,1,4,7,1,1,9,5,6,5,2,8,2,2,9,8,2,5
%N Decimal expansion of tan(tan(1)).
%H J. Blanck, <a href="http://cs-svr1.swan.ac.uk/~csjens/pdf/20640389.pdf">Exact real arithmetic systems: results of competition</a>, pp. 389-393 of J. Blanck et al., eds., Computability and Complexity in Analysis (CCA 2000), Lect. Notes Computer Science, Springer-Verlag, 2001.
%t RealDigits[Tan[Tan[1]],10,120][[1]] (* _Harvey P. Dale_, Aug 06 2019 *)
%o (PARI) tan(tan(1)) \\ _Charles R Greathouse IV_, Mar 25 2014
%K cons,nonn
%O 2,1
%A _N. J. A. Sloane_, Jul 15 2003