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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A201317 Decimal expansion of x satisfying x^2-8=cot(x) and 0<x<pi. 2
2, 5, 5, 1, 0, 9, 4, 1, 5, 8, 8, 9, 3, 9, 1, 5, 8, 0, 0, 7, 3, 4, 6, 1, 6, 1, 9, 2, 9, 4, 0, 8, 1, 0, 2, 9, 1, 7, 6, 3, 5, 9, 2, 5, 8, 2, 9, 2, 3, 6, 5, 8, 6, 2, 3, 3, 8, 7, 4, 1, 4, 2, 5, 2, 7, 6, 4, 3, 8, 0, 7, 1, 4, 9, 5, 2, 2, 0, 1, 1, 8, 4, 9, 0, 5, 8, 5, 2, 5, 2, 0, 0, 2, 5, 0, 7, 5, 7, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A201280 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=2.55109415889391580073461619294081029176...

MATHEMATICA

a = 1; c = -8;

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

Plot[{f[x], g[x]}, {x, 0, Pi}, {AxesOrigin -> {0, 0}}]

r = x /. FindRoot[f[x] == g[x], {x, 2.5, 2.6}, WorkingPrecision -> 110]

RealDigits[r]    (* A201317 *)

CROSSREFS

Cf. A201280.

Sequence in context: A075102 A209883 A021396 * A298526 A160177 A145428

Adjacent sequences:  A201314 A201315 A201316 * A201318 A201319 A201320

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Nov 30 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 20 09:02 EST 2018. Contains 299384 sequences. (Running on oeis4.)