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Re: What is @@@?

  • To: mathgroup at
  • Subject: [mg87279] Re: What is @@@?
  • From: AES <siegman at>
  • Date: Sun, 6 Apr 2008 06:44:08 -0400 (EDT)
  • Organization: Stanford University
  • References: <ft2au1$ph5$>

In article <ft2au1$ph5$1 at>,
 "Kevin J. McCann" <Kevin.McCann at> wrote:

> I have seen several references to the command @@@ in this newsgroup, but 
> a query of the online Documentation Center just refers me to Apply (@@). 
> What does it do and where can I read about it?

More broadly:

*  Do all the _non-alphabetical_ commands (or symbols, or operators, or 
abbreviations, or whatever is their proper appellation) like  "/.",  
"//.",  "->",  "=>",  "@",  etc, etc, etc, have a unique appellation _as 
a class_?

*  Does each of these non-alphabetical constructs also have a unique 
individual name?

*  Suppose one wanted to get a complete (complete!) list of all of these 
non-alphabetical constructs, their names, and maybe a brief description 
of their meaning, to use maybe as a reference list, a crib sheet, or 
just to see which of them one hasn't learned yet.  Where would one go?

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