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 A198936 #8 Feb 07 2025 17:56:43
%S A198936 4,4,8,7,1,1,7,7,1,1,5,9,0,9,8,4,8,0,9,4,3,9,4,0,7,6,3,7,1,9,7,1,0,6,
%T A198936 0,5,0,1,7,4,5,0,0,1,7,4,3,9,1,1,4,1,8,3,0,2,5,7,4,1,9,0,2,3,0,0,4,1,
%U A198936 5,4,6,2,9,4,7,7,8,0,1,0,6,5,1,4,1,4,0,5,8,2,6,0,3,3,8,4,1,1,7
%N A198936 Decimal expansion of x>0 satisfying 3*x^2-4*cos(x)=-3.
%C A198936 See A198755 for a guide to related sequences. The Mathematica program includes a graph.
%H A198936 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198936 0.4487117711590984809439407637197106050174500...
%t A198936 a = 3; b = -4; c = -3;
%t A198936 f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
%t A198936 Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
%t A198936 r = x /. FindRoot[f[x] == g[x], {x, .44, .45}, WorkingPrecision -> 110]
%t A198936 RealDigits[r] (* A198936 *)
%Y A198936 Cf. A198755.
%K A198936 nonn,cons
%O A198936 0,1
%A A198936 _Clark Kimberling_, Nov 01 2011