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Re: Sum of list elements

  • To: mathgroup at
  • Subject: [mg49331] Re: Sum of list elements
  • From: Bill Rowe <readnewsciv at>
  • Date: Wed, 14 Jul 2004 07:29:39 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

On 7/13/04 at 4:32 AM, spam at husumtoften.invalid (Per R¯nne) wrote:

>I'm trying to find a function [possibly a way to make a function]
>which calculate the sum of the elements of a list.

>Right now, the purpose is to find the relative distribution of the
>elements of a list. That is, I need a way to get out that the
>distribution of:

>{2, 2, 1}


>{2/5, 2/5, 1/5}.

Probably the most direct way of obtaining the sum of a list of elements would be to Apply Plus to the list, i.e.,


For lists that are vectors


will work as well and executes faster
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