A199065 Decimal expansion of x<0 satisfying 2*x^2+sin(x)=3.

1, 4, 1, 1, 9, 8, 7, 3, 1, 0, 2, 3, 2, 3, 0, 3, 2, 8, 8, 8, 7, 3, 0, 6, 3, 5, 7, 9, 6, 8, 8, 4, 5, 9, 7, 9, 1, 6, 4, 0, 2, 1, 9, 8, 7, 2, 0, 9, 4, 7, 0, 1, 2, 4, 1, 0, 8, 9, 7, 4, 7, 3, 6, 7, 3, 7, 9, 8, 3, 5, 9, 8, 2, 5, 0, 1, 8, 7, 6, 8, 2, 6, 9, 6, 3, 4, 0, 7, 9, 8, 3, 5, 1, 1, 2, 1, 2, 3, 0

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: -1.41198731023230328887306357968845979164...
positive:  1.03450269177738273452176790088513105811...

Mathematica

a = 2; b = 1; 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, -1.5, -1.4}, WorkingPrecision -> 110]
RealDigits[r] (* A199065 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.03, 1.04}, WorkingPrecision -> 110]
RealDigits[r] (* A199066 *)

Crossrefs

Cf. A198866.

Sequence in context: A082950 A060102 A308359 * A152237 A176282 A082043

Adjacent sequences: A199062 A199063 A199064 * A199066 A199067 A199068

Keyword

nonn,cons

Author

Clark Kimberling, Nov 02 2011

Status

approved