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A198422 Decimal expansion of x>0 having x^2-x=3*sin(x). 2
2, 1, 5, 7, 7, 0, 1, 7, 7, 1, 4, 4, 1, 4, 3, 8, 6, 1, 1, 4, 3, 7, 6, 7, 8, 7, 1, 1, 9, 7, 1, 7, 3, 1, 5, 7, 0, 5, 5, 1, 4, 9, 1, 5, 2, 3, 0, 5, 8, 2, 4, 4, 5, 3, 4, 0, 0, 6, 8, 6, 0, 4, 9, 8, 3, 9, 0, 7, 3, 3, 8, 1, 3, 2, 2, 6, 4, 6, 0, 5, 7, 5, 2, 0, 8, 3, 9, 3, 1, 9, 3, 6, 7, 7, 5, 1, 5, 5, 3 (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=2.157701771441438611437678711971731570551...

MATHEMATICA

a = 1; b = -1; c = 3;

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

Plot[{f[x], g[x]}, {x, -1, 2.5}]

r = x /. FindRoot[f[x] == g[x], {x, 2.1, 2.2}, WorkingPrecision -> 110]

RealDigits[r] (* A198422 *)

CROSSREFS

Cf. A198414.

Sequence in context: A259972 A193762 A268489 * A105459 A227048 A139133

Adjacent sequences:  A198419 A198420 A198421 * A198423 A198424 A198425

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 24 2011

STATUS

approved

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Last modified September 28 06:57 EDT 2021. Contains 347703 sequences. (Running on oeis4.)