From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11220 invoked by alias); 8 Dec 2003 17:04:53 -0000 Mailing-List: contact gsl-discuss-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gsl-discuss-owner@sources.redhat.com Received: (qmail 11192 invoked from network); 8 Dec 2003 17:04:45 -0000 Received: from unknown (HELO web20418.mail.yahoo.com) (66.163.169.94) by sources.redhat.com with SMTP; 8 Dec 2003 17:04:45 -0000 Message-ID: <20031208170445.25277.qmail@web20418.mail.yahoo.com> Received: from [128.122.114.186] by web20406.mail.yahoo.com via HTTP; Mon, 08 Dec 2003 09:04:45 PST Date: Mon, 08 Dec 2003 17:04:00 -0000 From: Z F Subject: Re: complex lInear algebra To: Brian Gough Cc: gsl-discuss@sources.redhat.com In-Reply-To: <16340.24545.926561.625783@debian.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-SW-Source: 2003-q4/txt/msg00125.txt.bz2 Hello Brian, Well, the situation is the following. For our research we need long complex SVD. To do that we need long complex BLAS and complex SVD. We do not see the logic in not expanding the BLAS standard to handle longs and thus the proposition holds: Add data types to BLAS K long double real Q long double complex and the functions which operate on them as the first step. Second step is to program complex SVD algorithm and the rest of them. Since we have to do it anyway, we would like this to be available to others too (and ourselves in future). Roman and Lazar --- Brian Gough wrote: > Z F writes: > > OK, me and my brother will try to work on that. We will start with > > the BLAS support. We need some convention for the naming of the > > functions. The current one is: > > S single real > > D double real > > C single complex > > Z double complex > > We propose to add > > K long double real > > Q long double complex > > These are not part of the BLAS standard -- so I would not want to add > them to gsl itself. > > The sort of algorithms I am interested in would be complex QR and > complex SVD. The "GSL Design Document" at > http://sources.redhat.com/gsl/ contains information on contributing. > > regards, > > -- > Brian Gough > > p.s. Can you post any development related messages to the list > gsl-discuss@sources.redhat.com rather than me directly -- thanks. __________________________________ Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing. http://photos.yahoo.com/