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.

A198553 Decimal expansion of x>0 having 3*x^2-x=4*sin(x).

This page as a plain text file.
%I A198553 #8 Apr 23 2025 12:41:19
%S A198553 1,3,1,4,5,1,8,9,3,5,6,6,2,9,1,3,3,7,8,5,6,2,0,3,2,7,2,2,8,9,9,0,1,3,
%T A198553 0,4,7,0,8,6,4,8,6,6,8,7,6,7,2,6,3,8,2,3,5,9,7,7,7,0,5,1,9,4,0,4,4,7,
%U A198553 9,7,0,5,4,6,6,8,5,4,2,3,9,8,3,0,2,8,9,9,7,5,3,0,6,2,5,5,0,2,6
%N A198553 Decimal expansion of x>0 having 3*x^2-x=4*sin(x).
%C A198553 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198553 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198553 1.314518935662913378562032722899013047086486...
%t A198553 a = 3; b = -1; c = 4;
%t A198553 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198553 Plot[{f[x], g[x]}, {x, -.1, 1.5}]
%t A198553 r = x /. FindRoot[f[x] == g[x], {x, 1.13, 1.14}, WorkingPrecision -> 110]
%t A198553 RealDigits[r] (* A198553 *)
%Y A198553 Cf. A198414.
%K A198553 nonn,cons
%O A198553 1,2
%A A198553 _Clark Kimberling_, Oct 26 2011