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Re: Re: Product

  • To: mathgroup at smc.vnet.net
  • Subject: [mg87552] Re: [mg87491] Re: Product
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Sat, 12 Apr 2008 07:03:49 -0400 (EDT)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <ftmtsj$4lf$1@smc.vnet.net> <200804110956.FAA08319@smc.vnet.net>
  • Reply-to: murray at math.umass.edu

But of course Total is also redundant!  Plus @ {1,2,3,4}

So the issue is one of language design: when does a particular case of a 
more general construction occur so frequently that a special function
should be introduced for it.

Szabolcs Horv=E1t wrote:
> Steven wrote:
>> Silly beginner's question: is there a function to multiply all elements of a
>> list, like Total does for addition?
>
> No, there isn't.  But it would be redundant anyway because it is very
> easy to build your own:
>
> In[1]:= Times @@ {1, 2, 3, 4, 5}
> Out[1]= 120
>
> Look up Apply in the documentation.
>

--
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305



  • References:
    • Re: Product
      • From: Szabolcs Horvát <szhorvat@gmail.com>
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