login
A133919
Decimal expansion of the real inflection point of the tanhc function.
0
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
OFFSET
0,1
LINKS
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
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Sep 28 2007
STATUS
approved