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 A200602 #8 Feb 07 2025 16:44:07 %S A200602 1,4,7,3,1,4,0,0,7,1,1,2,6,3,0,1,7,2,3,4,7,9,2,7,5,0,8,1,6,1,2,3,1,1, %T A200602 6,9,8,1,9,2,5,5,6,5,5,5,1,6,9,8,9,9,0,7,7,0,4,4,9,1,0,7,7,6,6,5,2,8, %U A200602 1,6,3,6,3,3,5,9,0,2,7,9,3,1,9,4,2,8,3,5,2,5,3,1,6,7,3,1,1,9,6,5,5,5 %N A200602 Decimal expansion of least x>0 satisfying 4*x^2-x+3=tan(x). %C A200602 See A200338 for a guide to related sequences. The Mathematica program includes a graph. %e A200602 x=1.473140071126301723479275081612311698192556555... %t A200602 a = 4; b = -1; c = 3; %t A200602 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x] %t A200602 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}] %t A200602 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110] %t A200602 RealDigits[r] (* A200602 *) %Y A200602 Cf. A200338. %K A200602 nonn,cons %O A200602 1,2 %A A200602 _Clark Kimberling_, Nov 19 2011