A199436 Decimal expansion of x>0 satisfying x^2+3*x*sin(x)=2*cos(x).

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

Offset

0,1

Comments

See A199370 for a guide to related sequences. The Mathematica program includes a graph.

Links

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

Example

x=0.6482210358834324109817303939212785430601907...

Mathematica

a = 1; b = 3; c = 2;
f[x_] := a*x^2 + b*x*Sin[x]; g[x_] := c*Cos[x]
Plot[{f[x], g[x]}, {x, -Pi, Pi}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .64, .65}, WorkingPrecision -> 110]
RealDigits[r]   (* A199436 *)

Crossrefs

Cf. A199429.

Sequence in context: A195487 A073746 A010496 * A035415 A197833 A334960

Adjacent sequences: A199433 A199434 A199435 * A199437 A199438 A199439

Keyword

nonn,cons

Author

Clark Kimberling, Nov 06 2011

Status

approved