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.

A199795 Decimal expansion of x>0 satisfying 3*x^2-x*cos(x)=3*sin(x).

This page as a plain text file.
%I A199795 #8 Feb 08 2025 22:36:18
%S A199795 1,0,1,3,6,1,4,2,4,5,6,5,0,4,0,0,9,4,5,3,6,8,8,5,8,7,8,9,7,2,4,4,7,6,
%T A199795 7,1,2,1,1,4,4,9,0,1,5,1,0,0,5,2,0,9,9,7,6,7,2,6,6,8,0,7,6,1,7,2,9,5,
%U A199795 7,1,2,7,8,5,0,4,9,3,2,6,3,4,8,7,6,6,6,4,7,0,0,4,0,6,0,3,3,5,3
%N A199795 Decimal expansion of x>0 satisfying 3*x^2-x*cos(x)=3*sin(x).
%C A199795 See A199597 for a guide to related sequences. The Mathematica program includes a graph.
%H A199795 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A199795 1.013614245650400945368858789724476712114490...
%t A199795 a = 3; b = -1; c = 3;
%t A199795 f[x_] := a*x^2 + b*x*Cos[x]; g[x_] := c*Sin[x]
%t A199795 Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
%t A199795 r = x /. FindRoot[f[x] == g[x], {x, 1.01, 1.02}, WorkingPrecision -> 110]
%t A199795 RealDigits[r]   (* A199795 *)
%Y A199795 Cf. A199597.
%K A199795 nonn,cons
%O A199795 1,4
%A A199795 _Clark Kimberling_, Nov 10 2011