%I #32 Aug 21 2023 12:13:13
%S 6,3,6,6,1,0,0,1,8,7,5,0,1,7,5,2,5,2,9,9,2,3,5,5,2,7,6,0,5,7,2,6,9,8,
%T 0,3,7,9,9,4,8,4,7,0,0,3,2,3,7,2,8,5,6,3,1,0,7,5,8,5,6,2,8,8,2,4,5,6,
%U 5,8,9,5,3,0,1,8,2,9,2,5,0,4,8,7,9,8
%N Decimal expansion of 5/(3*phi^2) where phi is the golden ratio.
%C An algebraic number of degree 2. - _Charles R Greathouse IV_, Sep 28 2013
%C A quadratic number with denominator 2; minimal polynomial 9x^2 -15x + 25. - _Charles R Greathouse IV_, Apr 21 2016
%H <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>
%F 5/(3*phi^2), with phi = (1 + sqrt(5))/2.
%e 0.6366100187501752529923552760572698037994847...
%t RealDigits[5/(3*GoldenRatio^2), 10, 100][[1]] (* _Alonso del Arte_, Sep 28 2013 *)
%o (PARI) (15-5*sqrt(5))/6 \\ _Charles R Greathouse IV_, Sep 28 2013
%K nonn,cons
%O 0,1
%A _Joost Gielen_, Sep 20 2013