Re: Trouble with tables

• To: mathgroup at smc.vnet.net
• Subject: [mg64835] Re: [mg64822] Trouble with tables
• From: Bob Hanlon <hanlonr at cox.net>
• Date: Sun, 5 Mar 2006 03:18:54 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

```t1=Table[{x[1,1],x[1,2],y},{x[1,1],1,3},{x[1,2],1,3}];

ni=1;nj=2;
a=Flatten[Table[x[i,j],{i,1,ni},{j,1,nj}]];

t1==t2

True

Bob Hanlon

>
> From: Luiz Melo <luiz.melo at polymtl.ca>
To: mathgroup at smc.vnet.net
> Subject: [mg64835] [mg64822] Trouble with tables
>
> Hi there,
> I'm having a little trouble with the function "Table". Using:
>
> t1 = Table[{x[1, 1], x[1, 2], y}, {x[1, 1], 1, 3}, {x[1, 2], 1, 3}]
>
> the variables x[1,1] and x[1,2] assume the values 1, 2 and 3, that's fine.
> Now I want to automatically generate the argument of the function Table
above
> and then evaluate it. I tried the following program:
>
> ni = 1; nj = 2;
> a = Flatten[Table[x[i, j], {i, 1, ni}, {j, 1, nj}]]; d = Dimensions[a][[1]];
> b = {}; Do[b = Append[b, {a[[i]], 1, 3}], {i, 1, d}];
> t2 = Table[Join[{Append[a, y]}, b]];
>
> and I got a result (t2) which is different from t1. Why?
>
> Thanks,
> Luiz
>
>
>
>

```

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