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MathGroup Archive 2004

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Re: Understanding Flatten

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46319] Re: Understanding Flatten
  • From: drbob at bigfoot.com (Bobby R. Treat)
  • Date: Sat, 14 Feb 2004 04:37:54 -0500 (EST)
  • References: <c0k52g$8pd$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

>>I don't see why adding {g, f[e, g]} as a second list to...

That's not the only difference between the two Flatten statements.

Bobby

Harold.Noffke at wpafb.af.mil (Harold Noffke) wrote in message news:<c0k52g$8pd$1 at smc.vnet.net>...
> Mathematica 5.0.1 on Windows 2000
> MathGroup:
> 
> In my study of Flatten, the Mathematica Book gives this example ...
> 
> 	You can use Flatten to "splice" sequences of elements into lists
> 	or other expressions.  
> 
> 	In[5]:= Flatten[ {a, f[b, c], f[a, b, d]}, 1, f ]
> 
> 	Out[5]= {a,b,c,a,b,d}
> 
> I modified In[5] as follows ...
> 
> 	In[1]:= Flatten[ { {a, f[b, c], f[a, b, d]}, {g, f[e, g]} }]
> 
> 	Out[1]= {a, f[b, c], f[a, b, d], g, f[e, g]}	
> 	
> I don't see why adding {g, f[e, g]} as a second list to the In[5] example
> unflattens Flatten's answer.  What am I misunderstanding?
> 
> Thanks.
> Harold


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