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A198505 Decimal expansion of x>0 having 4*x^2+x=2*sin(x). 2
2, 4, 5, 0, 1, 2, 4, 0, 4, 2, 4, 6, 2, 6, 1, 5, 0, 1, 4, 0, 8, 2, 4, 5, 3, 0, 6, 8, 3, 6, 8, 1, 1, 1, 3, 4, 4, 4, 2, 8, 1, 5, 6, 5, 1, 3, 8, 6, 8, 0, 1, 2, 4, 2, 1, 1, 1, 7, 9, 6, 5, 5, 0, 9, 7, 9, 7, 6, 9, 6, 1, 0, 7, 0, 8, 2, 5, 0, 3, 5, 0, 0, 0, 3, 5, 8, 1, 9, 7, 3, 1, 8, 4, 6, 6, 4, 6, 9, 2 (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
EXAMPLE
x=0.24501240424626150140824530683681113444...
MATHEMATICA
a = 4; b = 1; c = 2;
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, .24, .25}, WorkingPrecision -> 110]
RealDigits[r] (* A198505 *)
CROSSREFS
Cf. A198414.
Sequence in context: A285616 A065975 A089420 * A173163 A021412 A258066
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Oct 25 2011
STATUS
approved

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)