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A199075 Decimal expansion of x<0 satisfying 2*x^2+3*sin(x)=3. 3
1, 7, 2, 6, 7, 8, 5, 3, 2, 2, 3, 7, 1, 0, 9, 3, 1, 9, 6, 9, 4, 1, 7, 1, 4, 1, 6, 8, 5, 6, 3, 4, 9, 9, 4, 6, 6, 1, 7, 1, 0, 5, 8, 0, 5, 9, 3, 1, 3, 0, 0, 9, 9, 3, 9, 4, 8, 9, 0, 9, 7, 0, 2, 8, 1, 6, 5, 7, 4, 3, 2, 2, 7, 6, 5, 3, 3, 0, 3, 2, 0, 3, 4, 8, 7, 4, 2, 3, 1, 7, 3, 3, 6, 2, 6, 1, 8, 7, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A198866 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

Table of n, a(n) for n=1..99.

EXAMPLE

negative: -1.72678532237109319694171416856349946617...

positive:  0.71708638918192182669700429533330771873...

MATHEMATICA

a = 2; b = 3; c = 3;

f[x_] := a*x^2 + b*Sin[x]; g[x_] := c

Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]

r = x /. FindRoot[f[x] == g[x], {x, -1.8, -1.7}, WorkingPrecision -> 110]

RealDigits[r] (* A199075 *)

r = x /. FindRoot[f[x] == g[x], {x, .71, .72}, WorkingPrecision -> 110]

RealDigits[r] (* A199076 *)

CROSSREFS

Cf. A198866.

Sequence in context: A182548 A322933 A143306 * A228045 A011361 A199433

Adjacent sequences:  A199072 A199073 A199074 * A199076 A199077 A199078

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Nov 03 2011

STATUS

approved

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Last modified February 22 12:33 EST 2020. Contains 332136 sequences. (Running on oeis4.)