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A198564 Decimal expansion of x>0 having 4*x^2-2x=sin(x). 2
7, 2, 8, 4, 6, 8, 2, 3, 9, 3, 5, 6, 9, 9, 0, 7, 6, 8, 3, 6, 1, 5, 3, 2, 2, 7, 8, 1, 4, 9, 9, 0, 7, 4, 7, 0, 5, 2, 5, 0, 9, 5, 3, 6, 5, 0, 7, 0, 5, 2, 8, 5, 5, 4, 9, 5, 9, 3, 8, 6, 9, 5, 3, 7, 9, 3, 9, 9, 9, 0, 4, 3, 2, 8, 0, 1, 7, 1, 5, 3, 8, 2, 4, 9, 5, 2, 2, 5, 1, 2, 2, 6, 1, 7, 5, 8, 6, 3, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

See A198414 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=0.7284682393569907683615322781499074705250953...

MATHEMATICA

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

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

Plot[{f[x], g[x]}, {x, -.2, 1}]

r = x /. FindRoot[f[x] == g[x], {x, .72, .73}, WorkingPrecision -> 110]

RealDigits[r] (* A198564 *)

CROSSREFS

Cf. A198414.

Sequence in context: A093753 A249506 A199046 * A259072 A107311 A048836

Adjacent sequences:  A198561 A198562 A198563 * A198565 A198566 A198567

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 26 2011

STATUS

approved

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Last modified July 24 03:01 EDT 2019. Contains 325290 sequences. (Running on oeis4.)