MathGroup Archive 1999

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: the new @@@ thing, MapApply?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg20725] Re: the new @@@ thing, MapApply?
  • From: Martin Kraus <Martin.Kraus at informatik.uni-stuttgart.de>
  • Date: Wed, 10 Nov 1999 00:17:41 -0500
  • Organization: Institut fuer Informatik, Universitaet Stuttgart
  • References: <805vob$de4@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Daniel Reeves wrote:
> 
> I can't find any documentation on the new @@@ function in version 4.
> Could someone explain it?  Or confirm the following:
> 
> It looks like
> f @@@ { {a,b,c}, {d,e,f}, ... }
> is equivalent to
> f @@#&/@ { {a,b,c}, {d,e,f}, ... }
> in other words,
> like Map, but doing Apply to each element.
> 
> --    --    --    --    --    --    --    --    --    --    --    --
> Daniel Reeves               http://ai.eecs.umich.edu/people/dreeves/

Just a small addition: The meaning of @@@ can be revealed with

In[1]:=
HoldForm[f @@@ l]

Out[1]=
Apply[f, l, {1}]

Greetings

Martin Kraus


  • Prev by Date: Re: Running Mathematica under Linux Red Hat
  • Next by Date: Re: the new @@@ thing, MapApply?
  • Previous by thread: Re: the new @@@ thing, MapApply?
  • Next by thread: Re: the new @@@ thing, MapApply?