Re: pick out an element from list
- To: mathgroup at smc.vnet.net
- Subject: [mg98091] Re: pick out an element from list
- From: Raffy <raffy at mac.com>
- Date: Sun, 29 Mar 2009 03:23:21 -0500 (EST)
- References: <gqkup8$458$1@smc.vnet.net>
On Mar 28, 3:39=C2 am, bahadir <bahadirgurbu... at hotmail.com> wrote: > i have a list with n element.i want to pick out an element from the list,= and to deduct the element from all the other residual elements. This proce= ss is the first step. i must apply all elements of the list, invariably. Na= mely, in conclusion, i will obtain n list with n-1 elements. now, i will tr= y to explain as numerically. let element number of the list be 2500. and i = am picking out the first element of the list. and i'm deducting the first e= lement from the residual elements of the list. and now, i have a list with = 2499 elements.after that, i'm passing the second element, and i'm applying = the same processes. =C4=B1 can't do this, can anyone help me??? I'm not sure if I follow but: v = RandomReal[{0, 1}, 10]; First@NestWhile[Rest[#] - First[#] &, v, Length[#] > 1 &] Which is same thing as: Take[v, -2].{-1, 1}