A199063 Decimal expansion of x<0 satisfying 2*x^2+sin(x)=2.

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

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: -1.21165128243157712269097010844196865387...
positive:  0.80067830457009112112413406604532756205...

Mathematica

a = 2; b = 1; c = 2;
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, -1.3, -1.2}, WorkingPrecision -> 110]
RealDigits[r](* A199063 *)
r = x /. FindRoot[f[x] == g[x], {x, .80, .81}, WorkingPrecision -> 110]
RealDigits[r](* A199064 *)

Crossrefs

Cf. A198866.

Sequence in context: A190782 A369288 A330490 * A140956 A166919 A338874

Adjacent sequences: A199060 A199061 A199062 * A199064 A199065 A199066

Keyword

nonn,cons

Author

Clark Kimberling, Nov 02 2011

Status

approved