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MathGroup Archive 2006

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Re: Something in the spirit of letrec

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68451] Re: Something in the spirit of letrec
  • From: Bill Rowe <readnewsciv at earthlink.net>
  • Date: Sat, 5 Aug 2006 03:46:55 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

On 8/4/06 at 3:59 AM, mariano.suarezalvarez at gmail.com (Mariano
Suárez-Alvarez) wrote:

>I'm trying to somehow come up with a function WithSelf such that
>evaluating

>WithSelf[{a,self[1]+b,self[2]+2}]

>will result in {a,a+b,a+b+c}. 

FoldList does this, i.e.,

In[2]:=
Rest@FoldList[Plus,0,{a,b,c}]

Out[2]=
{a,a+b,a+b+c}
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