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MathGroup Archive 1997

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Re: Sequence is funny !

  • To: mathgroup at
  • Subject: [mg8951] Re: [mg8852] Sequence is funny !
  • From: "culioli" <culioli at>
  • Date: Mon, 6 Oct 1997 01:59:19 -0400
  • Organization: Ecole des Mines de Paris
  • Sender: owner-wri-mathgroup at

Hello dear,
Just try  
Sequence[1,3] + 1
And look at the answer. There is no bug since Sequence has no Head so it
gets "eaten" by the Plus head. This is what splice means.

seanross at a écrit dans l'article
<611otr$hho at>...
> Gilles BARBIER wrote:
> > 
> Since Sequence is advertised as:
> "Sequence[expr1, expr2, ... ] represents a sequence of arguments to be
> spliced automatically into any function."
> The above behavior IS a bug in my opinion regardless of how you can
> explain it with internal structure etc.  The command does not do as
> advertised=> a bug.

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