Re: Passing a list as seperate parameters?

*To*: mathgroup at smc.vnet.net*Subject*: [mg73220] Re: [mg73194] Passing a list as seperate parameters?*From*: Sseziwa Mukasa <mukasa at jeol.com>*Date*: Thu, 8 Feb 2007 03:33:31 -0500 (EST)*References*: <200702071006.FAA00361@smc.vnet.net>

On Feb 7, 2007, at 5:06 AM, 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? Union@@{{a,b},{c,d}} Regards, Ssezi

**References**:**Passing a list as seperate parameters?***From:*"Azumanga" <4zumanga@gmail.com>