A199865 - OEIS

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A199865

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

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

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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..98.

EXAMPLE

x=0.4646025259952393958921906007574784643540565243570...

MATHEMATICA

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

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