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%I #11 Apr 23 2024 16:28:57
%S 2,7,1,7,5,2,5,8,5,3,1,9,5,1,1,7,1,6,5,2,8,8,4,3,7,2,2,4,9,8,5,8,8,9,
%T 2,0,7,0,9,4,6,4,1,1,1,4,6,1,7,7,9,4,5,3,0,9,8,0,8,4,6,2,7,0,7,5,4,6,
%U 7,0,5,8,3,0,4,7,0,0,1,1,7,7,6,8,1,0,8,5,1,5,1,6,4,1,8,7,2,9,5
%N Decimal expansion of Re(tan(1+i)).
%D L. V. Ahlfors, Complex Analysis, McGraw-Hill, 3rd ed., p. 44.
%F Equals sin(2)/(cos(2) + cosh(2)). - _Peter Luschny_, Apr 23 2024
%e .27175258531951171652884372249858892070946411146177945309808...
%t First[RealDigits[Re[Tan[1 + I]], 10, 100]] (* _Paolo Xausa_, Apr 23 2024 *)
%o (PARI) real(tan(1+I)) \\ _Charles R Greathouse IV_, Mar 25 2014
%Y Cf. A170937.
%K nonn,cons,changed
%O 0,1
%A _N. J. A. Sloane_, Feb 12 2010
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