Xref: utzoo sci.math.num-analysis:1173 sci.math.stat:1632 comp.sources.wanted:13442 comp.lang.pascal:4208 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!know!zaphod.mps.ohio-state.edu!maverick.ksu.ksu.edu!ux1.cso.uiuc.edu!midway!mimsy!fe2o3!michael From: michael@fe2o3.UUCP (Michael Katzmann) Newsgroups: sci.math.num-analysis,sci.math.stat,comp.sources.wanted,comp.lang.pascal Subject: Re: Eigenvalues/vectors code in Pascal needed Message-ID: <393@fe2o3.UUCP> Date: 28 Sep 90 17:05:36 GMT References: <4298@rex.cs.tulane.edu> Reply-To: michael@fe2o3.UUCP (Michael Katzmann) Followup-To: sci.math.num-analysis Organization: Rusty's BSD machine at home Lines: 30 In article <4298@rex.cs.tulane.edu> georgiou@rex.cs.tulane.edu (George Georgiou) writes: >I am in terrible need of Pascal code that finds the >eigenvalues and eigenvectors of a general real matrix. >If someone out there has such a code, would you please let me know? > Try "Numerical Recipes in Pascal" by Cambridge University Press. ( 40 West 20th st. NY ). (Probably available at your local good bookstore but the publishers have the routine on disk.) I use the "C" version and it is extremely good. A few little bugs like the way they sometimes address arrays (nothing I have found that would cause the programme to crash though). It has a suite of programmes for eigensystems. The methods are very well thought out and go far beyond the ususal simple approaches, so that the performance is optimum. --------------------------------------------------------------------- email to UUCP: uunet!mimsy!{arinc,fe2o3}!vk2bea!michael _ _ _ _ Amateur | VK2BEA (Australia) ' ) ) ) / // Radio | G4NYV (United Kingdom) / / / o _. /_ __. _ // Stations| NV3Z (United States) / ' (_<_(__/ /_(_/|_