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From: dewar@gnat.com (Robert Dewar)
Subject: Re: Information Systems Annex (usefulness of Decimal Floats)
Date: 17 Aug 2002 03:54:45 -0700
Date: 2002-08-17T10:54:45+00:00	[thread overview]
Message-ID: <5ee5b646.0208170254.75f94823@posting.google.com> (raw)
In-Reply-To: 3D5D1EA5.1040406@cogeco.ca

"Warren W. Gay VE3WWG" <ve3wwg@cogeco.ca> wrote in message news:<3D5D1EA5.1040406@cogeco.ca>...
> Robert Dewar wrote:
> > "Robert C. Leif" <rleif@rleif.com> wrote in message news:<mailman.1029282844.28090.comp.lang.ada@ada.eu.org>...
> "Useless" is extreme. There are situations where decimal 
> floating point is useful in computing financial values, 
> but normally as intermediate results.

For intermediate results, decimal floating-point offers no
particular advantages over binary floating-point. Indeed
the proposal carefully considered by CODASYL, but as far
as I know not adopted, was to require the use of IEEE
64-bit binary floating-point arithmetic for calculation
of intermediate results in COMPUTE.

Note that in general the COBOL style is not to use COMPUTE
but rather to carefully control the intermediate precision
of each step, in which case floating-point offers very little advantage if any.



  reply	other threads:[~2002-08-17 10:54 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-24  5:33 Dispatching and generics - language lawyer question Grein, Christoph
2002-07-24 22:55 ` Robert A Duff
2002-07-25 15:46   ` Ben Brosgol
2002-07-29 20:38     ` Robert A Duff
2002-07-31 22:52       ` Dmitry A.Kazakov
2002-07-31 20:18         ` Robert A Duff
2002-08-02  1:15           ` Dmitry A.Kazakov
2002-08-01 16:30             ` Hyman Rosen
2002-08-02 23:42               ` Dmitry A.Kazakov
2002-08-02 15:49                 ` Hyman Rosen
2002-08-02 17:48                   ` Stephen Leake
2002-08-10  3:03                     ` Warren W. Gay VE3WWG
2002-08-05 11:15                   ` Dmitry A. Kazakov
2002-08-12 12:44                   ` Robert Dewar
2002-08-13  2:00                     ` Information Systems Annex was " Robert C. Leif
2002-08-13  8:17                       ` Robert Dewar
2002-08-13 23:53                         ` Information Systems Annex Robert C. Leif
2002-08-13 17:37                       ` Information Systems Annex was RE: Dispatching and generics - language lawyer question Keith Thompson
2002-08-13 23:53                         ` Robert C. Leif
2002-08-14  8:52                           ` Keith Thompson
2002-08-14 21:53                             ` Robert C. Leif
2002-08-15  9:31                               ` Robert Dewar
2002-08-15 21:54                                 ` Decimal Floating point was " Robert C. Leif
2002-08-16  6:26                                   ` Keith Thompson
2002-08-16 16:26                                     ` Robert C. Leif
2002-08-16 18:17                                       ` Keith Thompson
2002-08-16 15:26                                   ` Robert Dewar
2002-08-16 15:29                                   ` Robert Dewar
2002-08-15  9:26                           ` Robert Dewar
2002-08-15 16:17                             ` Darren New
2002-08-15 17:25                               ` David C. Hoos
2002-08-15 17:31                                 ` Darren New
2002-08-15 19:59                                 ` Frank J. Lhota
2002-08-15 17:39                               ` tmoran
2002-08-15 19:18                               ` Information Systems Annex was RE: Dispatching and generics - Larry Kilgallen
2002-08-15 18:41                                 ` Hyman Rosen
2002-08-16 15:49                                 ` Robert Dewar
2002-08-17  6:31                                   ` Simon Wright
2002-08-17 14:17                                     ` Robert Dewar
2002-08-15 21:54                             ` Decimal Floating types was RE: Information Systems Annex was RE: Dispatching and generics - language lawyer question Robert C. Leif
2002-08-16 15:21                               ` Robert Dewar
2002-08-16 16:15                                 ` Decimal Floating types Warren W. Gay VE3WWG
2002-08-17 10:52                                   ` Robert Dewar
2002-08-17 14:30                                     ` Warren W. Gay VE3WWG
2002-08-20  0:26                                       ` Robert Dewar
2002-08-20  2:35                                         ` SteveD
2002-08-22 18:15                                         ` Richard Riehle
2002-08-23  3:23                                           ` Robert Dewar
2002-08-16 15:47                             ` Information Systems Annex (usefulness of Decimal Floats) Warren W. Gay VE3WWG
2002-08-17 10:54                               ` Robert Dewar [this message]
2002-08-17 14:06                                 ` Warren W. Gay VE3WWG
2002-08-17 10:56                               ` Robert Dewar
2002-08-17 14:12                                 ` Warren W. Gay VE3WWG
2002-08-17 19:04                                 ` Robert C. Leif
2002-08-20  0:25                                   ` Robert Dewar
2002-08-16 15:38                           ` Information Systems Annex was RE: Dispatching and generics - language lawyer question Robert Dewar
2002-08-13 22:50           ` Randy Brukardt
2002-08-14  0:02             ` Robert A Duff
2002-07-25  0:40 ` Robert Dewar
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