From chemistry-request[ AT ]ccl.net Tue May 3 12:12:37 2005 Received: from mx3.utmb.edu (mx3.utmb.edu [129.109.195.8]) by server.ccl.net (8.13.1/8.13.1) with ESMTP id j43GCWTg003437 for ; Tue, 3 May 2005 12:12:32 -0400 Received: from histidine.utmb.edu (histidine.utmb.edu [129.109.65.24]) by mx3.utmb.edu (8.12.11/8.12.11) with ESMTP id j43E70UV027562; Tue, 3 May 2005 09:07:00 -0500 Received: from localhost (localhost [[UNIX: localhost]]) by histidine.utmb.edu (8.13.1/8.13.1/Submit) id j43E7Hdr047876; Tue, 3 May 2005 09:07:17 -0500 (CDT) (envelope-from bdodson{at}scms.utmb.edu) X-Authentication-Warning: histidine.utmb.edu: bdodson set sender to bdodson{at}scms.utmb.edu using -f From: "M. L. Dodson" Reply-To: bdodson{at}scms.utmb.edu Organization: University of Texas Medical Branch To: "David J Anick" Subject: Re: CCL:eigenvalues & eigenvectors Date: Tue, 3 May 2005 09:07:17 -0500 User-Agent: KMail/1.7.2 Cc: chemistry{at}ccl.net References: <001201c54f43$c696c560$25d806d1{at}cable.rcn.com> In-Reply-To: <001201c54f43$c696c560$25d806d1{at}cable.rcn.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200505030907.17151.bdodson{at}scms.utmb.edu> X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlx=0 adultscore=0 adjust=0 reason=mlx engine=3.0.0-05050200 definitions=3.0.0-05050205 X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=failed version=3.0.3 X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on server.ccl.net On Monday 02 May 2005 01:21 pm, David J Anick wrote: > Dear CCL, > > Does anyone have or know of freeware that can > compute the eigenvalues and eigenvectors of a > real symmetric matrix (e.g a Hessian, but not > necessarily a Hessian)? I'd be content to run > under either Windows or Linux. > > Thank you, > David Anick PhD MD > david.anick{at}rcn.com > Look on Fionn Murtagh's web page: http://astro.u-strasbg.fr/~fmurtagh/mda-sw/ at pca.f (Fortran) and pca.c (C). He also has other multivariate analysis s/w available there. Bud Dodson -- M. L. Dodson bdodson{at}scms.utmb.edu 409-772-2178 FAX: 409-747-8608