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A198428 Decimal expansion of x>0 having x^2-2x=2*sin(x). 2
2, 4, 8, 8, 4, 2, 5, 2, 5, 9, 6, 5, 3, 5, 6, 6, 0, 1, 7, 4, 8, 7, 4, 9, 8, 4, 9, 4, 9, 3, 6, 1, 7, 9, 7, 1, 5, 4, 5, 0, 6, 5, 3, 5, 8, 9, 9, 6, 7, 9, 0, 2, 6, 4, 9, 4, 5, 5, 8, 5, 2, 6, 5, 1, 3, 6, 4, 2, 3, 8, 9, 5, 1, 6, 0, 2, 0, 1, 2, 7, 8, 7, 7, 4, 7, 4, 2, 4, 6, 9, 1, 2, 5, 4, 5, 6, 1, 0, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

LINKS

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

EXAMPLE

x=2.488425259653566017487498494936179715450...

MATHEMATICA

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

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

Plot[{f[x], g[x]}, {x, -.2, 2.5}]

r = x /. FindRoot[f[x] == g[x], {x, 2.48, 2.49}, WorkingPrecision -> 110]

RealDigits[r] (* A198428 *)

CROSSREFS

Cf. A198414.

Sequence in context: A133007 A141532 A197000 * A083550 A160161 A129279

Adjacent sequences:  A198425 A198426 A198427 * A198429 A198430 A198431

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 25 2011

STATUS

approved

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Last modified May 8 15:03 EDT 2021. Contains 343666 sequences. (Running on oeis4.)