login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A196999 Decimal expansion of slope of the line y=mx which meets the curve y=cos(5x/2) orthogonally (as in A196998). 2
4, 5, 6, 4, 8, 5, 0, 4, 2, 0, 2, 3, 4, 5, 0, 1, 2, 8, 1, 3, 9, 7, 6, 0, 6, 4, 7, 4, 3, 5, 4, 1, 3, 7, 1, 7, 0, 6, 4, 3, 0, 5, 0, 9, 2, 7, 8, 2, 9, 2, 8, 5, 3, 8, 2, 3, 5, 8, 0, 0, 3, 1, 8, 0, 1, 9, 6, 2, 6, 6, 6, 0, 4, 8, 0, 0, 6, 8, 5, 3, 6, 2, 8, 1, 6, 8, 7, 0, 7, 7, 1, 2, 8, 6, 7, 3, 1, 0, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
See the Mathematica program for a graph.
xo=1.055537135075475249854148417892290354122...
yo=0.481836913462240473673427172075977637742...
m=0.4564850420234501281397606474354137170643...
|OP|=1.1603126538559168441096914160911620183...
LINKS
MATHEMATICA
c = 5/2;
xo = x /. FindRoot[0 == x + c*Sin[c*x] Cos[c*x], {x, .8, 1.2}, WorkingPrecision -> 100]
RealDigits[xo] (* A196998 *)
m = Sin[c*xo]/xo
RealDigits[m] (* A196999 *)
yo = m*xo
d = Sqrt[xo^2 + yo^2]
Show[Plot[{Sin[c*x], yo - (1/m) (x - xo)}, {x, 0, Pi/c}],
ContourPlot[{y == m*x}, {x, 0, Pi/c}, {y, -.1, 1}], PlotRange -> All, AspectRatio -> Automatic]
CROSSREFS
Sequence in context: A096291 A201933 A016719 * A090370 A002129 A113184
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Oct 09 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 19 01:57 EDT 2024. Contains 370952 sequences. (Running on oeis4.)