cp's OEIS Frontend

A198925 Decimal expansion of x>0 satisfying 3*x^2-cos(x)=3.

%I A198925 #8 Feb 07 2025 19:48:40
%S A198925 1,0,7,6,2,0,7,7,7,8,3,5,4,6,7,6,6,6,6,1,8,6,2,2,7,8,7,9,7,0,8,3,4,9,
%T A198925 7,7,8,3,1,6,7,0,0,6,3,7,3,7,5,7,4,9,8,2,0,2,1,6,4,2,8,3,4,2,1,8,3,6,
%U A198925 6,1,7,4,1,7,9,6,9,6,4,1,7,2,8,1,0,4,8,1,6,0,2,5,9,9,2,8,1,9,2
%N A198925 Decimal expansion of x>0 satisfying 3*x^2-cos(x)=3.
%C A198925 See A198755 for a guide to related sequences. The Mathematica program includes a graph.
%H A198925 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198925 1.07620777835467666618622787970834977831670...
%t A198925 a = 3; b = -1; c = 3;
%t A198925 f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
%t A198925 Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
%t A198925 r = x /. FindRoot[f[x] == g[x], {x, 1, 1.1}, WorkingPrecision -> 110]
%t A198925 RealDigits[r]  (* A198925 *)
%Y A198925 Cf. A198755.
%K A198925 nonn,cons
%O A198925 1,3
%A A198925 _Clark Kimberling_, Oct 31 2011