Results 1 to 3 of 3

Math Help - arctanh x

  1. #1
    Junior Member
    Joined
    Oct 2009
    Posts
    25

    arctanh x

    Hey ive been asked to find the second deriviative of arctanh x, what on earth is arctanH???? Ive never encountered it before.

    thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2008
    From
    Paris, France
    Posts
    1,174
    Quote Originally Posted by anothernewbie View Post
    Thanks, I understand the arctan part, its just the H, are they using this as another variable ie, \arctan (hx)?
    No, it is the "area hyperbolic tangent" (or inverse hyperbolic tangent) function, the inverse function of the hyperbolic tangent function. Cf. here (and there)
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Oct 2009
    Posts
    25
    Ah super thanks for that i'll have a try and see how i get on with it.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. proving that arctanh(x) is differentiable
    Posted in the Calculus Forum
    Replies: 4
    Last Post: February 20th 2011, 04:24 AM

Search Tags


/mathhelpforum @mathhelpforum