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Re: Question: ABS and \[Prime]


Hi,

it is the fist derivative of Abs[z] with respect to z.

Regards
  Jens

"Ed Wells" <wellsed at wam.umd.edu> schrieb im Newsbeitrag
news:c5gfrm$apq$1 at smc.vnet.net...
> Hello,
>
> I'm not a regular duty Mathematica user and I've come across a problem
> in some of my work to which I cannot find an answer in Mathematica
> help or by googling.
>
> In my notebook output, a copy of which can be seen at :
>
> www.glue.umd.edu/~wellsed/derivatives.html
>
> I'm finding the derivatives of a complex function involving distances
> (R[] is a distance function) in an energy function (W[] is an energy
> function).  Each of my derivatives looks okay except for the presence
> of the Abs[] function with a \[Prime] following it.  It does not
> appear in every instance, but I cannot find any documentation for what
> this may mean.  An example is in the first line of Out[36].
>
> Any help is appreciated.
>
> --Ed Wells
>



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