A199058 Decimal expansion of x<0 satisfying x^2+3*sin(x)=3.

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

Offset

1,1

Comments

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

Links

Table of n, a(n) for n=1..100.

Example

negative: -2.2919650412674286490951331183944433...
positive:  0.8564305559075611794636325387524829760...

Mathematica

a = 1; b = 3; c = 3;
f[x_] := a*x^2 + b*Sin[x]; g[x_] := c
Plot[{f[x], g[x]}, {x, -3, 2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, -2.3, -2.2}, WorkingPrecision -> 110]
RealDigits[r]  (* A199058 *)
r = x /. FindRoot[f[x] == g[x], {x, .85, .86}, WorkingPrecision -> 110]
RealDigits[r] (* A199059 *)

Crossrefs

Cf. A198866.

Sequence in context: A176020 A048650 A125313 * A274569 A082838 A074961

Adjacent sequences: A199055 A199056 A199057 * A199059 A199060 A199061

Keyword

nonn,cons

Author

Clark Kimberling, Nov 02 2011

Extensions

a(98) onwards corrected by Georg Fischer, Aug 01 2021

Status

approved