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A199466
Decimal expansion of greatest x satisfying x^2-3*x*sin(x)=-cos(x).
2
2, 3, 7, 8, 1, 0, 9, 6, 9, 6, 1, 2, 0, 3, 2, 4, 8, 0, 6, 8, 2, 3, 0, 8, 7, 8, 4, 9, 8, 2, 6, 0, 8, 6, 3, 1, 8, 0, 9, 4, 7, 1, 5, 7, 4, 2, 2, 8, 8, 5, 5, 9, 6, 3, 5, 0, 6, 8, 0, 9, 8, 3, 4, 7, 7, 9, 1, 8, 0, 0, 4, 7, 7, 4, 9, 7, 1, 5, 9, 3, 6, 8, 2, 2, 3, 7, 3, 3, 3, 4, 2, 5, 1, 4, 1, 2, 0, 0, 9
OFFSET
1,1
COMMENTS
See A199429 for a guide to related sequences. The Mathematica program includes a graph.
EXAMPLE
x=2.3781096961203248068230878498260863180947157422...
MATHEMATICA
a = 1; b = -3; c = -1;
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, 2.37, 2.38}, WorkingPrecision -> 110]
RealDigits[r] (* A199466 greatest root *)
CROSSREFS
Cf. A199429.
Sequence in context: A092967 A056431 A281947 * A199966 A011027 A100072
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Nov 07 2011
STATUS
approved