Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Abs function

  • To: mathgroup at
  • Subject: [mg47267] Re: Abs function
  • From: Jens-Peer Kuska <kuska at>
  • Date: Fri, 2 Apr 2004 03:30:10 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <c4ge4p$5a$>
  • Reply-to: kuska at
  • Sender: owner-wri-mathgroup at


tha mean that the derivative of Abs[] can be different for
real and complex arguments. For real arguments you have

D[Abs[x], x] // FullSimplify[#, Element[x, Reals]] &



nikmatz wrote:
> Hi,
> i try to find the derivative of abs function
> D[Abs[x],x]
> and Mathematica answer
> Abs`[x]
> what mean that
> Thanks

  • Prev by Date: Independent component analysis on mono signal
  • Next by Date: Re: Abs function
  • Previous by thread: Independent component analysis on mono signal
  • Next by thread: Re: Abs function