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From: Preben Randhol <randhol@pvv.org>
Subject: Re: Matrix Multiplication
Date: 1999/12/15
Date: 1999-12-15T12:55:46+00:00	[thread overview]
Message-ID: <m3902wuzvd.fsf@kiuk0156.chembio.ntnu.no> (raw)
In-Reply-To: 8375gm2rtr@news1.newsguy.com

lindahl@pbm.com (Greg Lindahl) writes:

| language you are using. The second is that matrix inversion usually is
| a bad idea, and you should use LU decomposition instead.

I agree with you there. LU with pivoting that is, otherwise it could be
dubious what result you get due to round-off errors.

-- 
Preben Randhol -- [randhol@pvv.org] -- [http://www.pvv.org/~randhol/]     
         "Det eneste trygge stedet i verden er inne i en fortelling." 
                                                      -- Athol Fugard




  reply	other threads:[~1999-12-15  0:00 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-12-14  0:00 Matrix Multiplication William Dale
1999-12-14  0:00 ` David C. Hoos, Sr.
1999-12-14  0:00 ` Gautier
1999-12-15  0:00   ` Gautier
     [not found]   ` <5l1f5s4kck891a2s6o8bhvkirm4q79hm6c@4ax.com>
1999-12-15  0:00     ` Gautier
1999-12-15  0:00       ` Marin D. Condic
1999-12-15  0:00         ` Gautier
1999-12-16  0:00           ` Marin D. Condic
1999-12-27  0:00             ` Jeffrey L Straszheim
1999-12-15  0:00         ` Ted Dennison
1999-12-15  0:00           ` Gautier
1999-12-15  0:00             ` Tucker Taft
1999-12-16  0:00             ` Ted Dennison
1999-12-16  0:00             ` Ted Dennison
1999-12-15  0:00 ` Ted Dennison
1999-12-15  0:00   ` William B. Clodius
1999-12-15  0:00     ` Ted Dennison
1999-12-15  0:00       ` William B. Clodius
1999-12-16  0:00         ` Robert A Duff
1999-12-16  0:00           ` William B. Clodius
1999-12-15  0:00 ` E. Robert Tisdale
     [not found]   ` <3856FD3F.8291A71C@ucar.edu>
1999-12-15  0:00     ` E. Robert Tisdale
1999-12-14  0:00       ` Richard Maine
     [not found] ` <01bf4708$99ef98f0$022a6282@dieppe>
1999-12-15  0:00   ` Robert A Duff
1999-12-15  0:00     ` Marin D. Condic
1999-12-16  0:00     ` Dieter Britz
1999-12-16  0:00     ` Pascal Obry
1999-12-16  0:00       ` Greg Martin
1999-12-16  0:00       ` Brian Rogoff
1999-12-15  0:00   ` Gautier
1999-12-15  0:00 ` Greg Lindahl
1999-12-15  0:00   ` Preben Randhol [this message]
  -- strict thread matches above, loose matches on Subject: below --
1999-12-15  0:00 Carlisle, Martin
1999-12-15  0:00 ` Mario Klebsch
1999-12-19  0:00   ` Robert Dewar
1999-12-19  0:00 ` Robert Dewar
1999-12-19  0:00 ` Robert Dewar
1999-12-16  0:00 Carlisle, Martin
1999-12-16  0:00 ` Howard W. LUDWIG
     [not found] <637de084-0e71-4077-a1c5-fc4200cad3cf@googlegroups.com>
2012-07-10  8:39 ` Does Ada need elemental functions to make it suitable for scientific work? Nasser M. Abbasi
2012-07-10  9:07   ` Dmitry A. Kazakov
2012-07-12  0:31     ` robin.vowels
2012-07-12  7:12       ` Dmitry A. Kazakov
2012-07-29 13:39         ` Robin Vowels
2012-07-29 14:22           ` Dmitry A. Kazakov
2012-07-29 20:54             ` glen herrmannsfeldt
     [not found]               ` <apib1897s56dkultqmfl3emvk1os3tfdak@invalid.netcom.com>
2012-07-30  4:15                 ` glen herrmannsfeldt
     [not found]                   ` <nfhd181tv9u87mcqfb7rgd8lm48ihr9f4r@invalid.netcom.com>
2012-07-31  8:53                     ` MATRIX MULTIPLICATION Robin Vowels
2012-07-31  9:05                       ` Robin Vowels
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