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A019597 Decimal expansion of 2*Pi*e. 12

%I

%S 1,7,0,7,9,4,6,8,4,4,5,3,4,7,1,3,4,1,3,0,9,2,7,1,0,1,7,3,9,0,9,3,1,4,

%T 8,9,9,0,0,6,9,7,7,7,0,7,1,5,3,0,2,2,9,9,2,3,7,5,9,2,0,2,2,6,0,3,5,8,

%U 4,5,7,2,2,2,3,1,4,6,6,1,6,1,5,1,4,5,1,2,7,7,3,9,4,2,0,9,4,7,8,8,7,8,2,7,5

%N Decimal expansion of 2*Pi*e.

%C Equals imaginary part of (E + Pi*i)^2. - _Arkadiusz Wesolowski_, Jan 13 2013

%H Ivan Panchenko, <a href="/A019597/b019597.txt">Table of n, a(n) for n = 2..1000</a>

%e 17.079468...

%p evalf(2*Pi*exp(1)) ;

%t RealDigits[N[2*Pi*E, 105]][[1]] (* _Arkadiusz Wesolowski_, Jan 13 2013 *)

%o (PARI) 2*Pi*exp(1) \\ _Charles R Greathouse IV_, Jan 13 2013

%o (MAGMA) SetDefaultRealField(RealField(100)); R:=RealField(); 2*Pi(R)*Exp(1); // _G. C. Greubel_, Aug 24 2018

%K nonn,cons

%O 2,2

%A _N. J. A. Sloane_

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Last modified September 27 07:28 EDT 2021. Contains 347673 sequences. (Running on oeis4.)