This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A198615 #8 Apr 23 2025 12:50:39
%S A198615 5,9,0,5,1,5,7,3,7,9,3,9,5,5,8,9,6,4,6,2,8,8,7,1,7,3,7,8,1,9,3,3,8,3,
%T A198615 0,3,0,4,8,7,0,7,1,2,1,9,5,1,0,6,0,5,7,6,0,4,8,9,1,2,2,2,1,6,0,5,7,3,
%U A198615 3,2,4,8,9,6,3,8,2,7,3,0,7,4,3,6,7,6,0,6,8,8,3,4,2,6,1,4,9,7,0
%N A198615 Decimal expansion of x>0 satisfying 3*x^2+2x=4*sin(x).
%C A198615 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198615 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198615 0.590515737939558964628871737819338303048...
%t A198615 a = 3; b = 2; c = 4;
%t A198615 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198615 Plot[{f[x], g[x]}, {x, -.1, 1}]
%t A198615 r = x /. FindRoot[f[x] == g[x], {x, .59, .6}, WorkingPrecision -> 110]
%t A198615 RealDigits[r](* A198615 *)
%Y A198615 Cf. A198414.
%K A198615 nonn,cons
%O A198615 0,1
%A A198615 _Clark Kimberling_, Oct 28 2011