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A199507
Decimal expansion of x>0 satisfying 3*x^2-x*sin(x)=3*cos(x).
2
9, 2, 1, 5, 5, 7, 1, 1, 0, 1, 7, 0, 3, 2, 1, 7, 2, 5, 9, 9, 3, 7, 4, 8, 1, 2, 3, 1, 8, 8, 3, 0, 5, 6, 5, 5, 9, 3, 4, 3, 0, 5, 1, 9, 6, 4, 9, 7, 8, 9, 7, 8, 8, 4, 1, 8, 9, 1, 4, 0, 2, 5, 4, 4, 1, 6, 0, 0, 8, 7, 3, 9, 9, 6, 2, 9, 8, 5, 5, 5, 4, 1, 2, 5, 5, 5, 1, 4, 3, 3, 9, 8, 3, 5, 5, 5, 1, 5, 2
OFFSET
0,1
COMMENTS
See A199429 for a guide to related sequences. The Mathematica program includes a graph.
EXAMPLE
x=0.92155711017032172599374812318830565593430519...
MATHEMATICA
a = 3; b = -1; c = 3;
f[x_] := a*x^2 + b*x*Sin[x]; g[x_] := c*Cos[x]
Plot[{f[x], g[x]}, {x, -Pi, Pi}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .92, .93}, WorkingPrecision -> 110]
RealDigits[r] (* A199507 *)
CROSSREFS
Cf. A199429.
Sequence in context: A230191 A198984 A118322 * A230156 A225446 A277559
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Nov 07 2011
STATUS
approved