A199863 Decimal expansion of x>0 satisfying 4*x^2-x*cos(x)=3*sin(x).

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

Offset

0,1

Comments

See A199597 for a guide to related sequences. The Mathematica program includes a graph.

Links

Table of n, a(n) for n=0..98.

Example

x=0.8340067446429083391110166829079224585586502659...

Mathematica

a = 4; b = -1; c = 3;
f[x_] := a*x^2 + b*x*Cos[x]; g[x_] := c*Sin[x]
Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .83, .84}, WorkingPrecision -> 110]
RealDigits[r]    (* A199863 *)

Crossrefs

Cf. A199597.

Sequence in context: A334363 A200230 A069995 * A181180 A271521 A117889

Adjacent sequences: A199860 A199861 A199862 * A199864 A199865 A199866

Keyword

nonn,cons

Author

Clark Kimberling, Nov 11 2011

Status

approved