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Need pure function to opeate on integer lists

• To: mathgroup at smc.vnet.net
• Subject: [mg68103] Need pure function to opeate on integer lists
• From: Terry <tharter at attglobal.net>
• Date: Mon, 24 Jul 2006 00:55:45 -0400 (EDT)
• Reply-to: tharter at attglobal.net
• Sender: owner-wri-mathgroup at wolfram.com

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

• Follow-Ups:
  • Re: Need pure function to opeate on integer lists
    • From: Adriano Pascoletti <pascolet@dimi.uniud.it>