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A198935 Decimal expansion of x>0 satisfying 3*x^2-3*cos(x)=4. 2
1, 2, 7, 4, 7, 7, 4, 6, 9, 7, 2, 9, 2, 4, 4, 9, 5, 6, 0, 6, 0, 1, 9, 2, 6, 0, 6, 4, 0, 1, 0, 6, 3, 8, 0, 9, 7, 0, 8, 4, 7, 1, 2, 6, 1, 6, 5, 2, 3, 7, 3, 0, 0, 4, 2, 0, 3, 1, 6, 6, 5, 7, 2, 3, 0, 1, 3, 9, 6, 5, 5, 5, 3, 5, 4, 7, 1, 7, 7, 6, 2, 3, 7, 4, 4, 4, 0, 2, 0, 1, 6, 2, 9, 8, 1, 7, 5, 0, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
See A198755 for a guide to related sequences. The Mathematica program includes a graph.
LINKS
EXAMPLE
x=1.27477469729244956060192606401063809708471...
MATHEMATICA
a = 3; b = -3; c = 4;
f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 1.2, 1.3}, WorkingPrecision -> 110]
RealDigits[r] (* A198935 *)
CROSSREFS
Cf. A198755.
Sequence in context: A019968 A257434 A011050 * A019779 A222056 A247448
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Nov 01 2011
STATUS
approved

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)