%I #5 Mar 30 2012 18:57:54
%S 5,1,0,7,2,7,5,7,3,3,8,5,5,1,7,3,1,2,0,7,9,4,0,8,2,9,0,2,7,2,0,5,8,5,
%T 4,4,6,0,7,9,0,7,3,1,7,7,8,9,3,9,8,9,1,1,9,3,5,6,3,5,4,7,0,3,7,3,3,4,
%U 5,5,7,6,3,8,0,4,8,5,6,5,0,9,7,9,7,1,3,9,6,4,3,5,9,8,9,0,3,5,5
%N Decimal expansion of x<0 having 4*x^2+3x=sin(x).
%C See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%e x=-0.510727573385517312079408290272058544...
%t a = 4; b = 3; c = 1;
%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, -.51, -.5}, WorkingPrecision -> 110]
%t RealDigits[r] (* A198541 *)
%Y Cf. A198414.
%K nonn,cons
%O 0,1
%A _Clark Kimberling_, Oct 26 2011