Re: Parenthesis reduction
- To: mathgroup at smc.vnet.net
- Subject: [mg126924] Re: Parenthesis reduction
- From: "Nasser M. Abbasi" <nma at 12000.org>
- Date: Mon, 18 Jun 2012 05:43:04 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <jrlfoa$c2s$1@smc.vnet.net>
- Reply-to: nma at 12000.org
On 6/17/2012 3:47 PM, Mat' G. wrote:
> Which command should one use to get
> {a, b, c}, {d, e, f}, {g, h, i}
> from
> {{a, b, c}, {d, e, f}, {g, h, i}}
> ?
>
I am confused by this question. In general, an
expression, is either a list or not a list.
So what is
{a, b, c}, {d, e, f}, {g, h, i}
supposed to be? it is not a list. and it is not not a list
either. So, I do not know what it is.
Unless you asking for a much more basic question such
as using an idex to access an entry in a list?
lis={{a,b,c},{d,e,f},{g,h,i}}
lis[[1]]
lis[[2]]
lis[[3]]
Out[89]= {a,b,c}
Out[90]= {d,e,f}
Out[91]= {g,h,i}
--Nasser