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Question: ABS and \[Prime]

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  • Subject: [mg47461] Question: ABS and \[Prime]
  • From: wellsed at (Ed Wells)
  • Date: Tue, 13 Apr 2004 06:26:12 -0400 (EDT)
  • Sender: owner-wri-mathgroup at


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 :

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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