From: Hyman Rosen <hyrosen@mail.com>
Subject: Re: Announce: Grace project site operational
Date: Thu, 16 May 2002 12:40:14 -0400
Date: 2002-05-16T12:40:14-04:00 [thread overview]
Message-ID: <3CE3E0EE.8080408@mail.com> (raw)
In-Reply-To: 3CE392C6.5A82A53C@brighton.ac.uk
John English wrote:
> Surely the "right" way to do it is to express each value as a tuple
> consisting of magnitude and the exponents of each dimension, so
> 9.8 m/s**2 is (9.8, length=>1, time=>-2).
Yes. The question is, are the exponents part of the type,
or part of the object?
> Then you just have at most three versions of each operation
So you are talking about making the exponents part of the object.
This loses in two ways. First, every unit object carries along a
tuple, instead of just holding its value. Second, the compiler
no longer provides any type checking for unit correctness, since
tuple compatibility will involve a runtime check.
next prev parent reply other threads:[~2002-05-16 16:40 UTC|newest]
Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-08 2:38 Announce: Grace project site operational Ted Dennison
2002-05-08 2:48 ` Larry Kilgallen
2002-05-08 12:46 ` Ted Dennison
2002-05-08 13:33 ` Marin David Condic
2002-05-09 19:54 ` Randy Brukardt
2002-05-09 20:22 ` Marin David Condic
2002-05-10 14:59 ` Ted Dennison
2002-05-10 18:54 ` Randy Brukardt
2002-05-10 14:17 ` Larry Hazel
2002-05-10 14:46 ` David C. Hoos
2002-05-10 15:38 ` Marin David Condic
2002-05-11 14:17 ` Preben Randhol
2002-05-11 16:58 ` martin.m.dowie
2002-05-11 18:55 ` William C. Brennan
2002-05-11 20:10 ` Preben Randhol
2002-05-12 8:53 ` martin.m.dowie
2002-05-13 13:18 ` Marin David Condic
2002-05-13 13:07 ` Marin David Condic
2002-05-14 15:18 ` Ted Dennison
2002-05-14 15:45 ` Marin David Condic
2002-05-15 19:56 ` Hyman Rosen
2002-05-16 13:44 ` Stephen Leake
2002-05-14 17:02 ` Martin Dowie
2002-05-15 14:57 ` Ted Dennison
2002-05-15 15:31 ` Marin David Condic
2002-05-16 21:57 ` tmoran
2002-05-17 1:55 ` tmoran
2002-05-17 13:12 ` Marin David Condic
2002-05-18 1:44 ` tmoran
2002-05-15 15:54 ` Martin Dowie
2002-05-15 17:33 ` Larry Kilgallen
2002-05-15 17:04 ` David C. Hoos
2002-05-15 22:59 ` tmoran
2002-05-16 13:36 ` Marin David Condic
2002-05-16 13:43 ` Ted Dennison
2002-05-16 14:51 ` Marin David Condic
2002-05-17 15:34 ` Stephen Leake
2002-05-20 13:47 ` Marin David Condic
2002-05-21 14:23 ` Stephen Leake
2002-05-21 17:24 ` Ted Dennison
2002-05-21 17:52 ` Marin David Condic
2002-05-22 16:20 ` Stephen Leake
2002-05-28 8:22 ` Martin Dowie
2002-05-22 16:16 ` Stephen Leake
2002-05-16 11:06 ` John English
2002-05-16 13:52 ` Stephen Leake
2002-05-16 16:40 ` Hyman Rosen [this message]
2002-05-14 17:50 ` tmoran
2002-05-14 18:07 ` Preben Randhol
2002-05-14 18:12 ` Preben Randhol
2002-05-14 18:52 ` Hyman Rosen
2002-05-15 8:17 ` Dmitry A. Kazakov
2002-05-15 18:30 ` Hyman Rosen
2002-05-16 9:16 ` Dmitry A. Kazakov
2002-05-16 19:42 ` Hyman Rosen
2002-05-17 8:35 ` Dmitry A. Kazakov
2002-05-20 17:08 ` Hyman Rosen
2002-05-21 8:34 ` Dmitry A. Kazakov
2002-05-21 15:57 ` Hyman Rosen
2002-05-22 7:48 ` Dmitry A. Kazakov
2002-05-22 11:40 ` Georg Bauhaus
2002-05-22 15:05 ` Dmitry A. Kazakov
2002-05-22 16:14 ` Georg Bauhaus
2002-05-22 16:31 ` Hyman Rosen
2002-05-23 11:40 ` Dmitry A. Kazakov
2002-05-15 8:44 ` Martin Dowie
2002-05-15 18:15 ` Stephen Leake
2002-05-15 18:39 ` Darren New
2002-05-15 19:34 ` Hyman Rosen
2002-05-15 23:52 ` Darren New
2002-05-16 7:39 ` Hyman Rosen
2002-05-16 15:35 ` Darren New
2002-05-16 17:55 ` Brian Rogoff
2002-05-16 13:35 ` Stephen Leake
2002-05-16 15:50 ` Darren New
2002-05-16 16:28 ` Hyman Rosen
2002-05-17 15:14 ` Stephen Leake
2002-05-17 16:08 ` Darren New
2002-05-17 16:41 ` Fraser Wilson
2002-05-17 16:43 ` Stephen Leake
2002-05-17 16:24 ` Marin David Condic
2002-05-17 15:03 ` Fraser Wilson
2002-05-17 15:27 ` Stephen Leake
2002-05-17 16:20 ` Fraser Wilson
2002-05-17 16:46 ` Stephen Leake
2002-05-18 6:14 ` Simon Wright
2002-05-17 15:44 ` Mark Biggar
2002-05-17 16:09 ` Fraser Wilson
2002-05-17 16:48 ` Stephen Leake
2002-05-17 21:11 ` Mark Biggar
2002-05-21 8:45 ` Dmitry A. Kazakov
2002-05-15 19:24 ` Hyman Rosen
2002-05-15 23:33 ` tmoran
2002-05-16 13:48 ` Stephen Leake
2002-05-16 14:39 ` Martin Dowie
2002-05-14 19:10 ` tmoran
2002-05-14 19:58 ` Preben Randhol
2002-05-11 19:42 ` Jeffrey Carter
2002-05-11 20:16 ` Preben Randhol
2002-05-11 19:49 ` Jeffrey Carter
2002-05-13 15:44 ` Ted Dennison
2002-05-13 16:16 ` Marin David Condic
2002-05-13 17:10 ` Stephen Leake
2002-05-13 19:07 ` Preben Randhol
2002-05-13 20:21 ` Marin David Condic
2002-05-14 15:00 ` Ted Dennison
2002-05-14 16:00 ` Stephen Leake
2002-05-14 16:30 ` Preben Randhol
2002-05-13 19:16 ` Jeffrey Carter
2002-05-13 19:19 ` Simon Wright
2002-05-11 1:23 ` Richard Riehle
2002-05-11 12:27 ` Marc A. Criley
2002-05-08 16:12 ` Hyman Rosen
2002-05-08 16:31 ` Larry Kilgallen
2002-05-08 17:16 ` Marin David Condic
2002-05-09 9:50 ` Larry Kilgallen
2002-05-09 13:32 ` Marin David Condic
2002-05-09 13:54 ` Ted Dennison
2002-05-09 14:23 ` Mário Amado Alves
2002-05-09 20:02 ` Randy Brukardt
2002-05-09 20:44 ` Marin David Condic
2002-05-10 13:06 ` Hyman Rosen
2002-05-10 16:23 ` Preben Randhol
2002-05-10 18:57 ` Hyman Rosen
2002-05-10 18:58 ` Randy Brukardt
2002-05-10 8:35 ` Dmitry A. Kazakov
2002-05-10 9:12 ` GRACE web site (was Announce: Grace project site operationa)l David C. Hoos, Sr.
2002-05-10 14:33 ` Ted Dennison
2002-05-10 16:17 ` Preben Randhol
2002-05-13 14:07 ` Ted Dennison
2002-05-13 16:04 ` Darren New
2002-05-10 19:00 ` Announce: Grace project site operational Randy Brukardt
2002-05-13 8:10 ` Dmitry A. Kazakov
2002-05-10 19:35 ` Ted Dennison
2002-05-13 8:01 ` Dmitry A. Kazakov
2002-05-10 10:25 ` Mário Amado Alves
2002-05-09 20:53 ` Simon Wright
2002-05-10 8:29 ` Dmitry A. Kazakov
2002-05-14 15:03 ` John English
2002-05-15 8:34 ` Dmitry A. Kazakov
2002-05-15 10:38 ` John English
2002-05-15 11:18 ` Dmitry A. Kazakov
2002-05-15 18:10 ` Stephen Leake
2002-05-09 14:03 ` Wes Groleau
2002-05-09 15:38 ` Marin David Condic
2002-05-11 18:10 ` William C. Brennan
2002-05-08 22:00 ` Ted Dennison
2002-05-09 5:39 ` Hyman Rosen
2002-05-09 14:21 ` Wes Groleau
2002-05-25 22:03 ` Robert I. Eachus
2002-05-08 14:32 ` Stephen Leake
2002-05-10 14:46 ` Ted Dennison
2002-05-10 7:47 ` fraser
2002-05-10 14:55 ` Ted Dennison
-- strict thread matches above, loose matches on Subject: below --
2002-05-15 9:58 Grein, Christoph
2002-05-15 16:12 ` Ted Dennison
2002-05-15 11:32 Grein, Christoph
2002-05-15 13:41 ` Dmitry A. Kazakov
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