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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A200367 Decimal expansion of least x>0 satisfying 2*x^2+3*x+2=tan(x). 2
1, 4, 7, 8, 5, 3, 2, 5, 2, 2, 0, 1, 6, 5, 0, 1, 4, 9, 2, 4, 3, 4, 4, 0, 8, 0, 5, 0, 4, 0, 9, 0, 8, 4, 3, 5, 0, 7, 4, 8, 3, 3, 2, 7, 5, 6, 3, 8, 8, 4, 2, 8, 4, 6, 0, 5, 1, 2, 8, 2, 8, 0, 6, 6, 7, 4, 7, 5, 7, 9, 2, 2, 6, 8, 0, 2, 7, 3, 5, 9, 4, 9, 9, 9, 7, 8, 2, 2, 9, 2, 3, 3, 5, 5, 3, 5, 5, 4, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A200338 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=1.478532522016501492434408050409084350748332...

MATHEMATICA

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

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

Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]

r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]

RealDigits[r]   (* A200367 *)

CROSSREFS

Cf. A200338.

Sequence in context: A021213 A154687 A115021 * A272490 A261654 A121488

Adjacent sequences:  A200364 A200365 A200366 * A200368 A200369 A200370

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Nov 17 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 22 21:17 EDT 2019. Contains 323504 sequences. (Running on oeis4.)