Return-Path: Delivered-To: apmail-commons-user-archive@www.apache.org Received: (qmail 66808 invoked from network); 16 Oct 2010 18:25:40 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 16 Oct 2010 18:25:40 -0000 Received: (qmail 41613 invoked by uid 500); 16 Oct 2010 18:25:39 -0000 Delivered-To: apmail-commons-user-archive@commons.apache.org Received: (qmail 41488 invoked by uid 500); 16 Oct 2010 18:25:39 -0000 Mailing-List: contact user-help@commons.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: "Commons Users List" Delivered-To: mailing list user@commons.apache.org Received: (qmail 41479 invoked by uid 99); 16 Oct 2010 18:25:39 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 Oct 2010 18:25:39 +0000 X-ASF-Spam-Status: No, hits=0.7 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [194.206.126.239] (HELO smtp.nordnet.fr) (194.206.126.239) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 Oct 2010 18:25:30 +0000 Received: from lehrin (177.232.146.195.dynamic.adsl.abo.nordnet.fr [195.146.232.177]) by smtp.nordnet.fr (Postfix) with ESMTP id E2A7834330 for ; Sat, 16 Oct 2010 20:25:07 +0200 (CEST) Received: by lehrin (Postfix, from userid 5001) id 3137B406D; Sat, 16 Oct 2010 20:25:09 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on lehrin.spaceroots.local X-Spam-Level: Received: from lehrin.spaceroots.local (lehrin.spaceroots.local [127.0.0.1]) by lehrin (Postfix) with ESMTP id 9AF07405E for ; Sat, 16 Oct 2010 20:25:06 +0200 (CEST) Message-ID: <4CB9EE01.70106@free.fr> Date: Sat, 16 Oct 2010 20:25:05 +0200 From: Luc Maisonobe User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100922 Thunderbird/3.1.4 MIME-Version: 1.0 To: Commons Users List Subject: [math] Re: complex matrix operation References: <010401cb6d52$b75d1df0$261759d0$@edu> In-Reply-To: <010401cb6d52$b75d1df0$261759d0$@edu> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Virus-Checked: Checked by ClamAV on apache.org X-Old-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,FREEMAIL_FROM autolearn=unavailable version=3.3.1 Le 16/10/2010 18:53, Cuong P. Nguyen a �crit : > Hi, Hi Cuong, First, please use a [math] marker on the subject line when posting to this list for the commons-math component. The list is shared among several commons components and these markers help filtering. > can I use the package for basic complex-number matrix operations > (addition, subtraction, multiplication) ? You can use the linear algebra packe from commons-math with complex matrices. The appropriate interface is FieldMatrix which has two implementations: Array2DRowFieldMatrix and BlockFieldMatrix. The former should be preferred for small sizes and the later for large sizes. You can also use complex vectors and LU decomposition with these matrices. Luc > > Thanks > > Cuong > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscribe@commons.apache.org For additional commands, e-mail: user-help@commons.apache.org