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MathGroup Archive 2003

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Re: Out of Memory Problem (beginner)

  • To: mathgroup at
  • Subject: [mg44373] Re: [mg44289] Out of Memory Problem (beginner)
  • From: Dr Bob <drbob at>
  • Date: Fri, 7 Nov 2003 05:16:16 -0500 (EST)
  • Organization: Interstellar Corps of Engineers
  • Reply-to: drbob at
  • Sender: owner-wri-mathgroup at

To illustrate with a smaller matrix:

a = Table[i, {i, 1, 6}, {j, 1, 7}];
MatrixForm[one = Table[7i j, {i, 1, 6}, {j, 1, 6}]]
MatrixForm[two = a.Transpose[a]]
one == two

(results deleted)


Out of Memory Problem (beginner)
Subject: [mg44373] [mg44289] Out of Memory Problem (beginner)
From: cedric at (Cedric)
To: mathgroup at


I have a matrix of 6000 x 7000.
A = Table[i,{i,1,6000},{j,1,7000}]
I'd like to calculate A.Transpose[A].
But it appears "Out of Memory" problem after
trying to calculate for a long time.

Does anybody know how i can olve the above problem?

Thank you in advance,


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