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A198489 Decimal expansion of x>0 having x^2-4x=sin(x). 2
3, 8, 3, 3, 5, 6, 1, 0, 0, 7, 1, 6, 8, 5, 7, 4, 4, 2, 3, 4, 0, 1, 4, 9, 4, 5, 3, 0, 5, 7, 9, 9, 0, 1, 8, 0, 4, 6, 6, 2, 9, 2, 2, 3, 5, 5, 2, 6, 1, 7, 2, 0, 8, 3, 6, 9, 0, 2, 7, 5, 3, 7, 6, 9, 7, 2, 3, 2, 0, 7, 1, 8, 8, 8, 5, 5, 0, 9, 3, 0, 8, 5, 0, 4, 1, 7, 2, 0, 8, 1, 5, 8, 8, 8, 2, 4, 9, 9, 9 (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=3.83356100716857442340149453057990180466...

MATHEMATICA

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

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

Plot[{f[x], g[x]}, {x, -.2, 4}]

r = x /. FindRoot[f[x] == g[x], {x, 3.83, 3.84}, WorkingPrecision -> 110]

RealDigits[r] (* A198489 *)

CROSSREFS

Cf. A198414.

Sequence in context: A021265 A115369 A084233 * A015136 A179450 A117240

Adjacent sequences:  A198486 A198487 A198488 * A198490 A198491 A198492

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 25 2011

STATUS

approved

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Last modified October 23 02:24 EDT 2014. Contains 248411 sequences.