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Re: Passing a list as seperate parameters?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73245] Re: Passing a list as seperate parameters?
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 8 Feb 2007 03:46:35 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <eqc71p$qs7$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

Union [First[Transpose[{{a,b},{c,d}}]]]

will do it.

Regards
   Jens

Azumanga wrote:
> I have a recuring problem in using mathematica, which I'm sure there
> must be a simple fix for, but I've looked through the manual and can't
> find it.
> 
> As an example, I build up the list { {a,b},{c,d} }, and I want to find
> the union of it's elements.
> 
> At first glance, I want Union. However, Union wants it's input as
> Union[{a,b},{c,d}], Union[{{a,b},{c,d}}] doesn't do anything.
> 
> In general I get around this by fold, but it seems there should be a
> simpler method?
> 
> 


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