

A198875


Decimal expansion of x>0 satisfying 2*x^22*cos(x)=1.


2



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

0,1


COMMENTS

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


LINKS

Table of n, a(n) for n=0..98.


EXAMPLE

x=0.580036678647097694548367916190637248242237...


MATHEMATICA

a = 2; b = 2; c = 1;
f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
Plot[{f[x], g[x]}, {x, 2, 2}, {AxesOrigin > {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .58, .59}, WorkingPrecision > 110]
RealDigits[r] (* A198875 *)


CROSSREFS

Cf. A198755.
Sequence in context: A257774 A281386 A090817 * A249403 A201756 A242674
Adjacent sequences: A198872 A198873 A198874 * A198876 A198877 A198878


KEYWORD

nonn,cons


AUTHOR

Clark Kimberling, Oct 31 2011


STATUS

approved



