From: lindahl@pbm.com (Greg Lindahl)
Subject: Re: Matrix Multiplication
Date: 1999/12/15
Date: 1999-12-15T00:00:00+00:00 [thread overview]
Message-ID: <8375gm2rtr@news1.newsguy.com> (raw)
In-Reply-To: 385699B5.59C14D03@lmco.com
William Dale <william.dale.jr@lmco.com> writes:
> So could I get some help getting times for a Matrix inversion on a 50X50
> flotaing point matrix in both languages.
This is bad for 2 reasons. The first is that people do operations like
that using subroutine libraries written in assembly, no matter what
language you are using. The second is that matrix inversion usually is
a bad idea, and you should use LU decomposition instead.
-- g
next prev parent 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
[not found] ` <5l1f5s4kck891a2s6o8bhvkirm4q79hm6c@4ax.com>
1999-12-15 0:00 ` Gautier
1999-12-15 0:00 ` Marin D. Condic
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 ` Gautier
1999-12-16 0:00 ` Marin D. Condic
1999-12-27 0:00 ` Jeffrey L Straszheim
1999-12-15 0:00 ` Gautier
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 ` Gautier
1999-12-15 0:00 ` Robert A Duff
1999-12-15 0:00 ` Marin D. Condic
1999-12-16 0:00 ` Pascal Obry
1999-12-16 0:00 ` Greg Martin
1999-12-16 0:00 ` Brian Rogoff
1999-12-16 0:00 ` Dieter Britz
1999-12-15 0:00 ` Greg Lindahl [this message]
1999-12-15 0:00 ` Preben Randhol
-- 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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