login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A199065 Decimal expansion of x<0 satisfying 2*x^2+sin(x)=3. 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 (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: -1.41198731023230328887306357968845979164...

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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 19 00:54 EST 2020. Contains 332028 sequences. (Running on oeis4.)