login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A198608 Decimal expansion of -x where x<0 satisfies 2*x^2+3x=sin(x). 2
1, 0, 9, 3, 9, 2, 2, 7, 3, 9, 9, 0, 5, 4, 9, 9, 0, 8, 9, 0, 5, 7, 3, 4, 5, 8, 0, 3, 9, 5, 2, 1, 9, 6, 2, 2, 7, 6, 0, 4, 6, 8, 8, 2, 5, 0, 1, 9, 1, 3, 7, 3, 8, 4, 3, 9, 4, 4, 4, 9, 8, 2, 6, 5, 8, 9, 3, 0, 7, 8, 4, 6, 6, 1, 5, 8, 1, 2, 8, 4, 6, 9, 0, 0, 1, 9, 6, 6, 6, 2, 2, 2, 5, 3, 3, 6, 8, 7, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

See A198414 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=-1.0939227399054990890573458039521962276046...

MATHEMATICA

a = 2; b = 3; c = 1;

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

Plot[{f[x], g[x]}, {x, -2, .2}]

r = x /. FindRoot[f[x] == g[x], {x, -1.1, -1.0}, WorkingPrecision -> 110]

RealDigits[r](* A198608 *)

CROSSREFS

Cf. A198414.

Sequence in context: A242815 A155166 A159467 * A273637 A086705 A199866

Adjacent sequences:  A198605 A198606 A198607 * A198609 A198610 A198611

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 27 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 May 19 13:18 EDT 2019. Contains 323393 sequences. (Running on oeis4.)