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Re: Need pure function to opeate on integer lists

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68112] Re: Need pure function to opeate on integer lists
  • From: "Ray Koopman" <koopman at sfu.ca>
  • Date: Mon, 24 Jul 2006 05:52:20 -0400 (EDT)
  • References: <ea1nf3$pja$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Terry wrote:
> Hi All,
>    Suppose I have a list of integers, such as
>
> listA = {1,2,5,6,7,12,13,15,16,17,18,22,23,24}
>
> how do I construct a pure function that will difference successive
> integer elements to produce
>
> {1-24,2-1,5-2,6-5,7-6,12-7,13-12,15-13,16-15,17-16,18-17,22-18,23-22,24-23}
> 
> Thanks in advance
> .....Terry

(#-RotateRight@#&)


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