Re: Parenthesis reduction

*To*: mathgroup at smc.vnet.net*Subject*: [mg126933] Re: Parenthesis reduction*From*: David Bailey <dave at removedbailey.co.uk>*Date*: Mon, 18 Jun 2012 05:46:11 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <jrlfoa$c2s$1@smc.vnet.net>

On 17/06/2012 21:47, 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}} > ? > The problem is that your first expression isn't syntactically valid, so I presume what you really mean is something like transforming {{a, b, c}, {d, e, f}, {g, h, i}} into say fun[x,y,{a, b, c}, {d, e, f}, {g, h, i},z] In other words that you want to embed it in something else: In[1]:= tmp = {{a, b, c}, {d, e, f}, {g, h, i}} Out[1]= {{a, b, c}, {d, e, f}, {g, h, i}} In[2]:= fun[x, y, Sequence @@ tmp, z] Out[2]= fun[x, y, {a, b, c}, {d, e, f}, {g, h, i}, z] David Bailey http://www.dbaileyconsultancy.co.uk