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Re: Constructing vector using table

  • To: mathgroup at smc.vnet.net
  • Subject: [mg91025] Re: Constructing vector using table
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Mon, 4 Aug 2008 03:21:48 -0400 (EDT)
  • References: <g6t0i8$3dq$1@smc.vnet.net>

Prateek K Jha wrote:
> I am trying to create a vector using "Table" in which I enter a
> function that depends on other functions. An excerpt from the code is:
> 
> u2[i_] := 1 + Log[\[CapitalPhi][[i]]];
> un[i_] :=
>   Switch[IntegerPart[i/(m + 1)], 0, u1n[i], 1, u2[i], 2, u2[i]];
> 
> U = Table[un[i], {i, 1, 3*m}] // MatrixForm;
> Dimensions[U]
> 
> Output:
> {1}
> 
> Everything runs fine and even the vector is generated when I see the
> form of U. But, I am not able to do any operations on this matrix
> (like inverse, transpose etc). Even the Dimensions[U] give me 1 while
> it should be 60.
> 
> Please help me through if you can. If I am not clear or you need more
> info, please let me know
> 
> Regards
> Jha
> 
Yo will discover the reason for yourself if you execute:

U//FullForm

David Bailey
http://www.dbaileyconsultancy.co.uk


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