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A198507 Decimal expansion of x>0 having 4*x^2+x=4*sin(x). 2
6, 7, 5, 6, 3, 6, 8, 7, 1, 4, 5, 7, 3, 4, 1, 3, 7, 5, 7, 8, 9, 6, 6, 0, 2, 1, 4, 1, 1, 9, 9, 9, 6, 1, 1, 7, 2, 9, 3, 5, 9, 9, 1, 6, 9, 5, 3, 8, 1, 6, 5, 8, 9, 0, 3, 9, 9, 9, 5, 4, 4, 6, 6, 0, 4, 1, 9, 9, 7, 8, 3, 5, 3, 8, 6, 5, 0, 5, 0, 7, 4, 6, 7, 2, 6, 3, 8, 2, 7, 1, 8, 9, 6, 6, 7, 5, 3, 6, 9 (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=0.675636871457341375789660214119996117293599...

MATHEMATICA

a = 4; b = 1; c = 4;

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, .67, .68}, WorkingPrecision -> 110]

RealDigits[r] (* A198507 *)

CROSSREFS

Cf. A198414.

Sequence in context: A355336 A190648 A201519 * A021152 A199720 A157122

Adjacent sequences: A198504 A198505 A198506 * A198508 A198509 A198510

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 25 2011

STATUS

approved

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Last modified November 27 22:56 EST 2022. Contains 358406 sequences. (Running on oeis4.)