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Re: What is @@@?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg87294] Re: What is @@@?
  • From: Szabolcs Horvát <szhorvat at gmail.com>
  • Date: Mon, 7 Apr 2008 05:14:47 -0400 (EDT)
  • Organization: University of Bergen
  • References: <ft2au1$ph5$1@smc.vnet.net> <fta9ln$e9p$1@smc.vnet.net> <47F8B136.9060106@gmail.com>

Szabolcs Horvát wrote:
> AES wrote:
>> In article <ft2au1$ph5$1 at smc.vnet.net>,
>>  "Kevin J. McCann" <Kevin.McCann at umbc.edu> 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?
>>
> 
> I remembered that there was a table in the documentation listing all 
> operators in order of decreasing *precedence*.  It is very easy to find 
> by searching for "precedence" in the hand compiled master index of the 
> v5 documentation.  But after having searched for 10 minutes, I just 
> don't have any more patience to look it up in the v6 documentation ...
> 
> So here's the v5 doc link:
> 
> http://documents.wolfram.com/mathematica/book/section-A.2.7
> 

Well, it's no wonder I didn't find it.  It is under
Core Language -> Appendix: Language Structure -> Input Syntax -> 
Operator Input Forms in the "Virtual Book", but it turns out that the 
files are missing!


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