login
Decimal expansion of Pi/9.
7

%I #32 Sep 28 2022 13:59:43

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

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

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

%N Decimal expansion of Pi/9.

%C Overlapping interpretation of A046974, as in where numbers are put in a decimal digit place and overlapping digits are added. - _Eliora Ben-Gurion_, Dec 22 2019

%H Ivan Panchenko, <a href="/A019676/b019676.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

%F Equals Sum_{k>=0} A046974(k)/10^(k+1) = 3/10 + 4/100 + 8/10^3 + 9/10^4 + 14/10^5 + 23/10^6 + ... - _Eliora Ben-Gurion_, Dec 22 2019

%F Equals Integral_{x=0..oo} x^(7/2)/(1 + x^9) dx. - _Amiram Eldar_, Aug 12 2020

%e 0.349065850398865915384738153697722542688574377708345091219438288034201... - _Vladimir Joseph Stephan Orlovsky_, Dec 02 2009

%p evalf(Pi/9, 120); # _G. C. Greubel_, Jan 01 2020

%t RealDigits[N[Pi/9, 120]]//First (* _Vladimir Joseph Stephan Orlovsky_, Dec 02 2009 *)

%o (PARI) default(realprecision, 120); Pi/9 \\ _G. C. Greubel_, Jan 01 2020

%o (Magma) Pi(RealField(120))/9; // _G. C. Greubel_, Jan 01 2020

%o (Sage) numerical_approx(pi/9, digits=120) # _G. C. Greubel_, Jan 01 2020

%Y Cf. A000796 (Pi).

%K nonn,cons

%O 0,1

%A _N. J. A. Sloane_