Re: Replacement in a held function
- To: mathgroup at smc.vnet.net
- Subject: [mg113320] Re: Replacement in a held function
- From: "Nasser M. Abbasi" <nma at 12000.org>
- Date: Sat, 23 Oct 2010 07:07:13 -0400 (EDT)
- References: <i9r81q$hq2$1@smc.vnet.net>
- Reply-to: nma at 12000.org
On 10/21/2010 10:39 PM, Istv=E1n Zachar wrote: > Dear Group, > > How can the following toy example be modified to yield {1, 2, 3} > instead of {t, t, t}? Suppose func, t and list are given parameters > that cannot be changed, so I want to solve it with some kind of > argument-replacement-inside-the-loop method. Thus I'm looking for a > solution which only manipulates the internals of Do. If it is possible > at all. > > In[104]:= list = {}; > func := AppendTo[list, t]; > Do[func /. {t -> i}, {i, 3}]; > list > > Out[107]= {t, t, t} > one way: glist = {}; func[t_] := AppendTo[glist, t]; Do[func[i], {i, 3}]; glist Out[16]= {1, 2, 3} --Nasser