From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18343 invoked by alias); 15 Oct 2009 18:39:18 -0000 Received: (qmail 18332 invoked by uid 22791); 15 Oct 2009 18:39:17 -0000 X-SWARE-Spam-Status: No, hits=-2.3 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from smtp4.welho.com (HELO smtp4.welho.com) (213.243.153.38) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 15 Oct 2009 18:39:10 +0000 Received: from [10.0.0.133] (cs181229105.pp.htv.fi [82.181.229.105]) by smtp4.welho.com (Postfix) with ESMTP id 1AE935BC05B; Thu, 15 Oct 2009 21:39:07 +0300 (EEST) Message-ID: <4AD76C4B.6060703@iki.fi> Date: Thu, 15 Oct 2009 18:39:00 -0000 From: Tuomo Keskitalo User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090707) MIME-Version: 1.0 To: Brian Gough CC: Gerard Jungman , gsl-discuss@sourceware.org Subject: Re: some general questions References: <1254708349.18519.4.camel@ForbiddenPlanet> <7f1eaee30910050750l738876b1p41e6bd8ae5aa6d16@mail.gmail.com> <1254783975.28192.103.camel@manticore.lanl.gov> <87ljjojys0.wl%bjg@network-theory.co.uk> <1254861292.28192.239.camel@manticore.lanl.gov> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact gsl-discuss-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gsl-discuss-owner@sourceware.org X-SW-Source: 2009-q4/txt/msg00019.txt.bz2 Hello, On 10/14/2009 10:57 PM, Brian Gough wrote: >> I don't think this is a problem for machine solution. It's up to >> us to decide how the thing is organized. What depends on what, >> which parts are foundational, and which parts are built on >> top of those? Then we should organize the code so it >> expresses that. > > I was just thinking that it's not always obvious what the dependencies > are. For example, the special functions depend on linear algebra > (through the Mathieu function, which needs to compute some > eigenvalues) and there may be some other cases like that. ode-initval is another example. None of the explicit methods are dependent on linear algebra, while implicit methods are. Would we need to split the code in this case? -- Tuomo.Keskitalo@iki.fi http://iki.fi/tuomo.keskitalo