Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Initialize a matrix in mathematica

  • To: mathgroup at
  • Subject: [mg66752] Re: [mg66742] Initialize a matrix in mathematica
  • From: Bob Hanlon <hanlonr at>
  • Date: Mon, 29 May 2006 06:05:21 -0400 (EDT)
  • Reply-to: hanlonr at
  • Sender: owner-wri-mathgroup at



Here are some other ways:





Bob Hanlon

---- ashesh <ashesh.cb at> wrote: 
> Hi All,
> Have programmed in another system until now and am trying to shift to
> Mathematica and facing some diffciulties
> I would like to create a matrix, say a[ndiv] and would like to
> initilize all the value to i^2 (or any other value). The size of the
> matrix is not fixed.
> The code I tried to use is:
> ndiv = 5;
> a = {};
> For[i=1, i<=ndiv, i++,
> a[[i]] = i*i;
> ];
> a
> This is producing the following error:
> partw: Part 1 of {} does not exist and so on.
> I understand that I am not creating a matrix of size 1*ndiv for the
> data to be fed it.
> So I tried using Table as follows:
> a = Table[0,{1},{ndiv}] followed by the above For loop (when I wanted
> to initialize the matrix with say i*i;
> Hope some one can help me in doing the above operation
> Regs.

  • Prev by Date: FilledListPlot with StackGraphics
  • Next by Date: Re: Defining N for a new entity
  • Previous by thread: Re: Initialize a matrix in mathematica
  • Next by thread: Re: Initialize a matrix in mathematica