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Re: Does Union[] reliably sort?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg123664] Re: Does Union[] reliably sort?
  • From: Shizu <slivo.vitz at msa.hinet.net>
  • Date: Thu, 15 Dec 2011 04:52:31 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

Union[] is defined for "mathematical sets".  The elements are sorted and repeated elements are deleted. 

With Join[], we can just concatenate lists together, without sorting or dropping.



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