

A198423


Decimal expansion of x>0 having x^2x=4*sin(x).


1



2, 2, 9, 8, 8, 5, 3, 5, 8, 2, 2, 7, 7, 4, 0, 3, 2, 9, 5, 2, 0, 6, 0, 5, 9, 1, 9, 6, 1, 5, 3, 4, 3, 3, 3, 5, 0, 8, 7, 3, 9, 3, 2, 2, 5, 2, 2, 3, 1, 3, 2, 3, 3, 0, 8, 3, 4, 5, 5, 7, 6, 0, 3, 5, 8, 5, 5, 5, 9, 6, 2, 5, 4, 0, 0, 2, 4, 3, 9, 7, 6, 8, 9, 5, 0, 6, 4, 7, 0, 4, 2, 0, 0, 8, 4, 0, 7, 6, 7
(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=2.2988535822774032952060591961534333...


MATHEMATICA

a = 1; b = 1; c = 4;
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, 2.29, 2.3}, WorkingPrecision > 110]
RealDigits[r] (* A198423 *)


CROSSREFS

Cf. A198414.
Sequence in context: A220265 A243597 A021439 * A229116 A346918 A203904
Adjacent sequences: A198420 A198421 A198422 * A198424 A198425 A198426


KEYWORD

nonn,cons


AUTHOR

Clark Kimberling, Oct 25 2011


STATUS

approved



