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From: "Nasser M. Abbasi" <nma@12000.org>
Subject: Re: Arrays in Ada 2020
Date: Sat, 17 Jun 2017 22:00:10 -0500
Date: 2017-06-17T22:00:10-05:00	[thread overview]
Message-ID: <oi4qbt$evo$1@gioia.aioe.org> (raw)
In-Reply-To: oi4nk5$4m3$1@dont-email.me

On 6/17/2017 9:14 PM, Ivan Levashev wrote:
> Hello!
> 
> FYI Ada 2020 is about to bring some improvements:
> 
> http://www.ada-auth.org/standards/2xrm/html/RM-4-3-3.html
> 
>> G : constant Matrix :=
>>      (for I in 1 .. 4 =>
>>         (for J in 1 .. 4 =>
>>            (if I = J then 1.0 else 0.0))); -- Identity matrix
> 
> Best Regards,
> Ivan Levashev,
> Barnaul

That is nice. But still too much code for such common operation.
In Matlab the same can be  done using just

     eye(4)          % Identity matrix

For other languages

https://rosettacode.org/wiki/Identity_matrix

--Nasser


  reply	other threads:[~2017-06-18  3:00 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-06 11:47 Arrays in Ada 2012 Anatoly Chernyshev
2017-06-06 12:17 ` Dmitry A. Kazakov
2017-06-06 13:17   ` Simon Wright
2017-06-06 13:57     ` Dmitry A. Kazakov
2017-06-06 21:59       ` Simon Wright
2017-06-06 13:19 ` AdaMagica
2017-06-06 20:56   ` Randy Brukardt
2017-06-07  7:06     ` Dmitry A. Kazakov
2017-06-07 11:47       ` Anatoly Chernyshev
2017-06-07 12:15         ` Dmitry A. Kazakov
2017-06-08  0:55         ` Randy Brukardt
2017-06-08  0:51       ` Randy Brukardt
2017-06-08  7:07         ` Dmitry A. Kazakov
2017-06-09  3:23           ` Randy Brukardt
2017-06-18  2:14 ` Arrays in Ada 2020 Ivan Levashev
2017-06-18  3:00   ` Nasser M. Abbasi [this message]
2017-06-18 12:06     ` Robert Eachus
2017-06-18 20:15       ` Simon Wright
2017-06-20 13:33         ` Robert Eachus
2017-06-19  6:36       ` Ivan Levashev
2017-06-19 12:06         ` AdaMagica
2017-06-23  1:17           ` Randy Brukardt
2017-06-18 20:15     ` Pascal Obry
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