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.

A200696 Decimal expansion of least x>0 satisfying 3-2*x^2=tan(x).

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%I A200696 #8 Feb 07 2025 16:44:07
%S A200696 9,1,9,0,5,2,4,5,5,3,3,2,6,7,3,5,1,2,1,5,9,9,5,3,1,9,0,5,3,9,4,6,3,5,
%T A200696 6,3,2,7,5,7,7,8,8,6,5,4,4,3,3,8,6,9,1,8,6,4,3,9,0,4,4,8,5,4,0,4,4,8,
%U A200696 0,5,4,4,8,3,0,5,6,3,2,7,0,5,9,4,3,1,8,1,6,3,5,3,0,4,0,2,8,3,7
%N A200696 Decimal expansion of least x>0 satisfying 3-2*x^2=tan(x).
%C A200696 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200696 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200696 0.9190524553326735121599531905394635632757788...
%t A200696 a = -2; c = 3;
%t A200696 f[x_] := a*x^2 + c; g[x_] := Tan[x]
%t A200696 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200696 r = x /. FindRoot[f[x] == g[x], {x, .91, .92}, WorkingPrecision -> 110]
%t A200696 RealDigits[r]   (* A200696 *)
%Y A200696 Cf. A200338.
%K A200696 nonn,cons
%O A200696 0,1
%A A200696 _Clark Kimberling_, Nov 21 2011