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From: "J-P. Rosen" <rosen@adalog.fr>
Subject: Re: small example, using complex variables in Ada
Date: Fri, 11 Jun 2010 10:48:37 +0200
Date: 2010-06-11T10:48:37+02:00	[thread overview]
Message-ID: <hust9d$fun$1@news.eternal-september.org> (raw)
In-Reply-To: <op.vd3r0bltxmjfy8@garhos>

Yannick Duchï¿œne (Hibou57) a ï¿œcrit :
> Le Thu, 10 Jun 2010 15:27:38 +0200, J-P. Rosen <rosen@adalog.fr> a ï¿œcrit:
>> For output, rounding is specified in the standard. And BTW, the standard
>> does not specify IEEE (fortunately, it did not make the same mistake as
>> Java!).
> Which mistake ? (not to disagree, just to understand)
> 
What can you do if you have a non-IEEE machine (number crunchers like
Silicon-Graphics machine are not IEEE)? Either emulate IEEE in software,
but you are wasting speed and the money you invested in such machines,
or implement Java with the native arithmetic, ignoring the standard =>
total failure of the standard.

There is an interesting paper on the internet about why Java failed on
numerics. Sorry, I don't have the exact reference at hand, but it should
be easy to find.
-- 
---------------------------------------------------------
           J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr



  parent reply	other threads:[~2010-06-11  8:48 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-09 10:49 small example, using complex variables in Ada Nasser M. Abbasi
2010-06-09 11:26 ` Ludovic Brenta
2010-06-09 23:50   ` Jerry
2010-06-10  1:03     ` Jeffrey R. Carter
2010-06-10 15:48   ` Colin Paul Gloster
2010-06-10 14:54     ` Ludovic Brenta
2010-06-10 16:21       ` Colin Paul Gloster
2010-06-10 17:37         ` Adam Beneschan
2010-06-10 17:57         ` Jeffrey R. Carter
2010-06-10 22:32           ` Randy Brukardt
2010-06-11 12:42             ` Colin Paul Gloster
2010-06-11 18:59               ` Randy Brukardt
2010-06-14 19:19                 ` Colin Paul Gloster
2010-06-14 19:48                   ` Nasser M. Abbasi
2010-06-17  7:44     ` Gautier write-only
2010-06-17 10:33       ` Colin Paul Gloster
2010-06-17 14:39       ` Yannick Duchêne (Hibou57)
2010-06-17 16:36         ` Colin Paul Gloster
2010-06-09 12:43 ` Niklas Holsti
2010-06-10  7:23 ` Stephen Leake
2010-06-10  9:12   ` J-P. Rosen
2010-06-10 11:03     ` Yannick Duchêne (Hibou57)
2010-06-10 13:27       ` J-P. Rosen
2010-06-10 21:15         ` Yannick Duchêne (Hibou57)
2010-06-11  7:22           ` Dmitry A. Kazakov
2010-06-11  8:48           ` J-P. Rosen [this message]
2010-06-11 12:00             ` Brian Drummond
2010-06-10  9:34   ` Nasser M. Abbasi
2010-06-10 20:12     ` Simon Wright
2010-06-14  9:33 ` Vincent LAFAGE
2010-06-14 12:29   ` Nasser M. Abbasi
2010-06-14 13:00     ` Vincent LAFAGE
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