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A198542 Decimal expansion of x<0 having 4*x^2+3x=2*sin(x). 2
2, 5, 5, 4, 1, 8, 8, 5, 9, 9, 3, 7, 6, 0, 8, 1, 0, 1, 0, 0, 7, 6, 2, 2, 8, 1, 0, 9, 4, 9, 1, 6, 4, 2, 4, 3, 4, 9, 4, 9, 9, 6, 1, 1, 9, 0, 9, 1, 4, 9, 8, 4, 8, 7, 1, 4, 1, 5, 3, 5, 8, 0, 4, 3, 3, 0, 5, 9, 4, 3, 7, 1, 7, 6, 8, 9, 0, 9, 8, 1, 9, 3, 1, 6, 6, 8, 2, 1, 6, 8, 7, 2, 5, 7, 9, 8, 3, 9, 8 (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=-0.2554188599376081010076228109491642434...

MATHEMATICA

a = 4; b = 3; c = 2;

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

Plot[{f[x], g[x]}, {x, -.5, .2}]

r = x /. FindRoot[f[x] == g[x], {x, -.26, -.25}, WorkingPrecision -> 110]

RealDigits[r] (* A198542 *)

CROSSREFS

Cf. A198414.

Sequence in context: A078312 A004582 A074269 * A179373 A200484 A197004

Adjacent sequences:  A198539 A198540 A198541 * A198543 A198544 A198545

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 26 2011

STATUS

approved

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Last modified December 10 05:49 EST 2018. Contains 318044 sequences. (Running on oeis4.)