A198815 - OEIS

A198815

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

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

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OFFSET

1,1

COMMENTS

See A198755 for a guide to related sequences. The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=2.7831147565030203006399227292369585185988130...

MATHEMATICA

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

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