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Re: Expressions with ellipsis (...)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg93285] Re: Expressions with ellipsis (...)
  • From: AES <siegman at stanford.edu>
  • Date: Sun, 2 Nov 2008 01:58:07 -0500 (EST)
  • Organization: Stanford University
  • References: <gdmsbd$jv$1@smc.vnet.net> <200810240630.CAA23066@smc.vnet.net> <geh9sa$fbs$1@smc.vnet.net>

In article <geh9sa$fbs$1 at smc.vnet.net>, dch888 <dch888 at googlemail.com> 
wrote:

> > Another answer is that Mathematica *should* understand the syntax
> > with ellipsis-- and indeed it can with the facilities of David Park's
> > Presentations application package.

One has to be careful about the use and interpretation of ellipses.

For example the Mathematica documentation for Compound Expression says 
that

      expr_1 ;  expr_2 ;  ?
         evaluates the expr_i in turn, giving the last one as the result.

Would this statement, interpreted very literally using a precise 
definition of the ellipsis symbol, cover both

      expr_1 ;  expr_2  ;  expr_3  ;  expr_4  ;

and

      expr_1 ;  expr_2  ;  expr_3  ;  expr_4 

or just one of these?  (Which one?)

_Is there_ a precise definition of the ellipsis symbol? (in English, or 
in Mathematica)  

Is " ;  " technically an expression? (in Mathematica)


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