%I
%S 1,9,5,1,4,8,7,5,3,4,0,9,5,6,6,9,7,7,6,5,4,7,0,7,3,8,5,1,8,7,7,5,5,4,
%T 9,1,8,5,1,6,9,3,7,9,3,3,0,4,4,3,5,5,4,6,7,3,2,4,7,1,8,3,4,2,8,0,3,8,
%U 6,4,2,7,1,9,2,2,5,1,5,2,2,5,7,3,2,2,0,9,9,7,9,1,2,9,5,7,3,3,5
%N Decimal expansion of x>0 having x^2x=2*sin(x).
%C See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%e x=1.9514875340956697765470738518775549185...
%t a = 1; b = 1; c = 2;
%t f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t Plot[{f[x], g[x]}, {x, 1, 2}]
%t r = x /. FindRoot[f[x] == g[x], {x, 1.9, 2.0}, WorkingPrecision > 110]
%t RealDigits[r] (* A198421 *)
%Y Cf. A198414.
%K nonn,cons
%O 1,2
%A _Clark Kimberling_, Oct 24 2011
