A199723 - OEIS

A199723

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

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

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..99.

EXAMPLE

x=1.780608119966635204337801849076666...

MATHEMATICA

a = 1; b = -2; c = 4;

f[x_] := a*x^2 + b*x*Cos[x]; g[x_] := c*Sin[x]