%I #7 Aug 09 2021 07:56:26
%S 1,1,4,4,5,8,2,7,1,5,8,1,0,2,6,2,2,5,8,7,5,2,4,8,4,7,8,6,5,5,3,2,6,9,
%T 1,6,3,1,7,5,0,6,3,0,6,4,9,6,1,6,0,6,2,2,9,9,0,1,9,0,9,7,6,1,1,7,9,6,
%U 5,6,1,5,7,5,0,6,9,0,2,6,3,5,6,9,8,9,4,2,2,2,8,7,0,5,2,7,2,5,4
%N Decimal expansion of x>0 satisfying 4*x^23*cos(x)=4.
%C See A198755 for a guide to related sequences. The Mathematica program includes a graph.
%e x=1.14458271581026225875248478655326916317506306496160...
%t a = 4; b = 3; c = 4;
%t f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
%t Plot[{f[x], g[x]}, {x, 2, 2}, {AxesOrigin > {0, 0}}]
%t r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision > 110]
%t RealDigits[r] (* A198999 *)
%Y Cf. A198755.
%K nonn,cons
%O 1,3
%A _Clark Kimberling_, Nov 01 2011
