Re: Passing a list as seperate parameters?
- To: mathgroup at smc.vnet.net
- Subject: [mg73228] Re: [mg73194] Passing a list as seperate parameters?
- From: János <janos.lobb at yale.edu>
- Date: Thu, 8 Feb 2007 03:37:44 -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?
>
How about Apply ?
In[5]:=
Union @@ lst
Out[5]=
{a, b, c, d}
J=E1nos
--------------------------------------------------------
"Nowadays, security guys break the Mac every single day. Every single =
day, they come out with a total exploit, your machine can be taken
over totally. I dare anybody to do that once a month on the Windows
machine."
--Bill Gates, irritated by Apple's comercials
http://www.msnbc.msn.com/id/16934083/site/newsweek/page/2/
- References:
- Passing a list as seperate parameters?
- From: "Azumanga" <4zumanga@gmail.com>
- Passing a list as seperate parameters?