A199719 - OEIS

A199719

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

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

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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=1.837188730015143924257569441622008232558...

MATHEMATICA

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

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