A198922 Decimal expansion of x>0 satisfying 3*x^2-cos(x)=1.

7, 5, 8, 4, 8, 1, 2, 6, 0, 3, 1, 2, 6, 5, 2, 8, 0, 0, 6, 1, 1, 7, 4, 7, 6, 5, 6, 4, 9, 3, 5, 6, 8, 6, 3, 6, 5, 8, 2, 3, 7, 2, 7, 5, 7, 7, 0, 9, 7, 3, 2, 9, 7, 9, 6, 6, 8, 5, 5, 9, 4, 5, 1, 9, 3, 8, 1, 2, 9, 9, 4, 6, 4, 0, 8, 5, 4, 7, 4, 0, 9, 3, 4, 6, 7, 0, 0, 5, 9, 4, 5, 4, 9, 1, 1, 4, 5, 1, 2

Offset: 0

Author

Clark Kimberling, Oct 31 2011

Keywords

• nonn
• cons

Comments

See A198755 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			0.758481260312652800611747656493568636582...
		

Links

• Index entries for transcendental numbers.

Crossrefs

Cf. A198755.

Programs

Mathematica

a = 3; b = -1; c = 1;
f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .75, .76}, WorkingPrecision -> 110]
RealDigits[r]  (* A198922 *)