Re: Table local
- To: mathgroup at smc.vnet.net
- Subject: [mg113828] Re: Table local
- From: Raffy <adraffy at gmail.com>
- Date: Sun, 14 Nov 2010 06:11:18 -0500 (EST)
- References: <ibl9ek$b72$1@smc.vnet.net>
On Nov 12, 9:58 pm, EF <he.frauendor... at t-online.de> wrote:
> "Help, More Information" for Table states:
>
> Table effectively uses Block to localize values or variables.
>
> But
> Clear[u];
> Table[u = i^2, {i, 5}];
> u
>
> Clear[u];
> Table[u = i^2;, {i, 5}];
> u
>
> In both cases the value 25 for u is given.
> If u were really local, it should have no value outside of the Table
>
> For me there is a contradiction that can cause a lot of trouble
>
> E. F.
Table ONLY localizes the iterator:
i = 3;
Table[i, {i, 3}] ==== {1,2,3} // not {3, 3, 3}