A199867 - OEIS

A199867

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

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

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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..105.

EXAMPLE

0.63579423397192655143542664210015922323...

MATHEMATICA

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

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