From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ann: Mathpaqs, release Feb. 2011
Date: Tue, 22 Feb 2011 12:33:06 +0100
Date: 2011-02-22T12:33:06+01:00 [thread overview]
Message-ID: <1raralz4504m2$.1mwiu22cgxle0.dlg@40tude.net> (raw)
In-Reply-To: ik03qj$419$1@speranza.aioe.org
On Tue, 22 Feb 2011 02:40:17 -0800, Nasser M. Abbasi wrote:
> On 2/22/2011 2:27 AM, Dmitry A. Kazakov wrote:
>
>>> Is it possible to do something like this in Ada? There are number
>>> of sparse libraries out there, but googling around, do not see
>>> an Ada binding at this time.
>
>> Do you see MATLAB bindings instead? You seem comparing MATLAB libraries
>> with non-Ada ones.
>
> I was really asking a simple question :)
It is not a simple question, or I didn't understand you. Sparse matrices is
a huge research area with an uncounted number of algorithms and their
implementations.
> In Ada, how can one work with sparse matrices? Say I want to make Ax=b,
> where A is sparse, and solve for x.
Ax=b is an equation. Both Ada and MATLAB are imperative languages, you
cannot "make" equations there.
> How would you do that in Ada 2005? What libraries/bindings etc... does
> one need to use.
Whatever library that solves the problem of this class with the required
size and accuracy. Either you find a library or write it by yourself. That
has little to do with the language. Except that it would be difficult to
implement anything efficiently in MATLAB. MATLAB plug-ins are normally
written not in MATLAB itself.
> Using Sparse matrices is so common in matlab world, since it is build-in,
> and I was just giving an example, that is all.
Sparse matrices are impossible to build in. It is only possible to do
certain categories of sparse matrices. I don't know which ones MATLAB has.
Are you asking why Ada does not include them in the standard library?
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2011-02-22 11:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-21 18:43 Ann: Mathpaqs, release Feb. 2011 Gautier write-only
2011-02-21 23:59 ` Nasser M. Abbasi
2011-02-22 2:34 ` Gautier write-only
2011-02-22 9:56 ` Nasser M. Abbasi
2011-02-22 10:27 ` Dmitry A. Kazakov
2011-02-22 10:40 ` Nasser M. Abbasi
2011-02-22 11:33 ` Dmitry A. Kazakov [this message]
2011-02-22 20:45 ` Nasser M. Abbasi
2011-02-22 21:03 ` Dmitry A. Kazakov
2011-02-23 14:38 ` Simon Wright
2011-02-24 9:51 ` comp.lang.php
2011-02-25 21:09 ` Simon Wright
2011-02-26 0:21 ` Nasser M. Abbasi
2011-02-26 7:53 ` Simon Wright
2011-02-26 18:38 ` Gautier write-only
2011-02-26 20:59 ` Simon Wright
2011-02-22 17:35 ` Simon Wright
2011-02-22 17:21 ` Gautier write-only
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