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