A133919 - OEIS

A133919

Decimal expansion of the real inflection point of the tanhc function.

9, 1, 9, 9, 3, 7, 6, 6, 7, 7, 1, 6, 1, 9, 9, 4, 2, 2, 3, 3, 2, 1, 6, 8, 2, 2, 3, 2, 8, 6, 7, 7, 1, 1, 3, 1, 7, 0, 7, 4, 1, 3, 3, 0, 7, 8, 0, 7, 3, 6, 5, 5, 4, 6, 8, 3, 9, 8, 2, 3, 6, 7, 2, 6, 3, 9, 0, 6, 6, 6, 5, 5, 5, 7, 9, 7, 0, 2, 4, 5, 1, 6, 1, 4, 3, 4, 6, 9, 8, 9, 0, 4, 3, 8, 2, 4, 9, 0, 8, 5, 3, 4, 4, 8, 8

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,1

LINKS

Table of n, a(n) for n=0..104.

Eric Weisstein's World of Mathematics, Tanhc Function

EXAMPLE

0.91993766771619942233...

MATHEMATICA

RealDigits[ x /. FindRoot[ D[Tanh[x]/x, {x, 2}] == 0, {x, 1}, WorkingPrecision -> 110], 10, 105] // First (* Jean-François Alcover, Feb 07 2013 *)

CROSSREFS

Sequence in context: A193670 A309614 A154220 * A145078 A093644 A164791

Adjacent sequences: A133916 A133917 A133918 * A133920 A133921 A133922

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Sep 28 2007

STATUS

approved