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 A200597 #6 Feb 07 2025 16:44:07 %S A200597 5,9,7,7,9,0,7,0,6,8,8,1,9,3,7,5,2,1,8,3,7,2,5,5,0,8,8,4,1,7,4,4,0,0, %T A200597 4,5,7,8,5,1,0,6,9,6,8,2,1,2,7,9,8,2,1,5,5,6,9,2,4,9,3,1,6,0,1,4,6,9, %U A200597 0,7,3,0,7,8,6,8,9,8,6,4,4,4,8,2,8,1,5,5,5,2,4,1,2,4,7,4,1,5,7 %N A200597 Decimal expansion of least x>0 satisfying 3*x^2-4*x+2=tan(x). %C A200597 See A200338 for a guide to related sequences. The Mathematica program includes a graph. %e A200597 x=0.597790706881937521837255088417440045785106968... %t A200597 a = 3; b = -4; c = 2; %t A200597 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x] %t A200597 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}] %t A200597 r = x /. FindRoot[f[x] == g[x], {x, .2, .3}, WorkingPrecision -> 110] %t A200597 RealDigits[r] (* A200597 *) %Y A200597 Cf. A200338. %K A200597 nonn,cons %O A200597 0,1 %A A200597 _Clark Kimberling_, Nov 19 2011