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Re: System Ax=b!

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  • Subject: [mg32237] Re: System Ax=b!
  • From: "Michael J. Reeves, AA, ASc" <mjreeves at>
  • Date: Wed, 9 Jan 2002 03:17:30 -0500 (EST)
  • References: <a1bm0t$bd6$>
  • Sender: owner-wri-mathgroup at

On Mon, 7 Jan 2002 08:25:01 +0000 (UTC), Rebeka Renko
<irc_rebecca at> wrote:

>I would really be happy, if someone could help me.
>I was trying to write a program in mathematica on how
>to solve the system Ax=b with partial pivoting, where
>A is a three-diagonal matrix(a matrix that only has
>numbers on the main diagonal and on two diagonals that
>are lying on both sides from that main diagonal, every
>other element is 0), but came nowhere. 
>That is why it would be nice if someone has any
>suggestions how I could do that.
>I am looking forward on your answer and am thanking
>you in advance!
>Do You Yahoo!?
>Send FREE video emails in Yahoo! Mail!

	I am currently reading a text that seems to deal very explicitly
with your question.

	Numerical Methods of Statistics, John F. Monahan, Cambridge
Series in Statistical and Probabilistic Mathematics, 2001.

	Hope this helps.


Michael J. Reeves, AA, ASc
MJR Consulting Services
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E-Mail: mjreeves at
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