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 A198488 #9 Apr 23 2025 12:30:45
%S A198488 3,0,7,9,9,7,4,1,1,6,2,9,0,7,1,9,2,4,5,5,0,9,4,4,7,2,2,0,6,3,0,7,5,7,
%T A198488 7,7,9,4,7,6,5,6,1,2,8,7,8,9,9,9,1,7,8,6,8,6,6,4,9,5,1,7,7,6,0,4,0,8,
%U A198488 2,0,0,2,8,6,4,0,0,4,4,8,8,0,7,9,2,0,3,3,2,6,8,1,8,6,1,9,6,4,3
%N A198488 Decimal expansion of x>0 having x^2-3x=4*sin(x).
%C A198488 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198488 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198488 3.07997411629071924550944722063075777...
%t A198488 a = 1; b = -3; c = 4;
%t A198488 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198488 Plot[{f[x], g[x]}, {x, -.2, 3.5}]
%t A198488 r = x /. FindRoot[f[x] == g[x], {x, 3.07, 3.08}, WorkingPrecision -> 110]
%t A198488 RealDigits[r] (* A198488 *)
%Y A198488 Cf. A198414.
%K A198488 nonn,cons
%O A198488 1,1
%A A198488 _Clark Kimberling_, Oct 25 2011