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A198421 Decimal expansion of x>0 having x^2-x=2*sin(x). 1
1, 9, 5, 1, 4, 8, 7, 5, 3, 4, 0, 9, 5, 6, 6, 9, 7, 7, 6, 5, 4, 7, 0, 7, 3, 8, 5, 1, 8, 7, 7, 5, 5, 4, 9, 1, 8, 5, 1, 6, 9, 3, 7, 9, 3, 3, 0, 4, 4, 3, 5, 5, 4, 6, 7, 3, 2, 4, 7, 1, 8, 3, 4, 2, 8, 0, 3, 8, 6, 4, 2, 7, 1, 9, 2, 2, 5, 1, 5, 2, 2, 5, 7, 3, 2, 2, 0, 9, 9, 7, 9, 1, 2, 9, 5, 7, 3, 3, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

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=1.9514875340956697765470738518775549185...

MATHEMATICA

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

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

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

r = x /. FindRoot[f[x] == g[x], {x, 1.9, 2.0}, WorkingPrecision -> 110]

RealDigits[r] (* A198421 *)

CROSSREFS

Cf. A198414.

Sequence in context: A049256 A256191 A019982 * A262178 A154483 A198560

Adjacent sequences:  A198418 A198419 A198420 * A198422 A198423 A198424

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 24 2011

STATUS

approved

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Last modified September 15 14:38 EDT 2019. Contains 327078 sequences. (Running on oeis4.)