cp's OEIS Frontend

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.

A200692 Decimal expansion of least x>0 satisfying 8-x^2=tan(x).

This page as a plain text file.
%I A200692 #8 Feb 07 2025 16:44:07
%S A200692 1,4,0,6,2,5,2,3,2,3,2,9,7,3,6,1,4,6,8,0,8,0,5,9,3,2,9,6,3,5,2,0,4,2,
%T A200692 3,2,1,5,4,1,6,6,8,2,3,6,6,7,5,4,7,1,9,7,4,8,7,1,2,0,1,5,0,5,1,0,3,0,
%U A200692 8,5,5,1,2,1,8,0,8,9,4,9,7,8,9,7,4,6,0,1,2,6,4,6,7,7,5,0,3,0,0
%N A200692 Decimal expansion of least x>0 satisfying 8-x^2=tan(x).
%C A200692 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200692 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200692 1.4062523232973614680805932963520423215416682...
%t A200692 a = -1; c = 8;
%t A200692 f[x_] := a*x^2 + c; g[x_] := Tan[x]
%t A200692 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200692 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200692 RealDigits[r]   (* A200692 *)
%Y A200692 Cf. A200338.
%K A200692 nonn,cons
%O A200692 1,2
%A A200692 _Clark Kimberling_, Nov 21 2011