From help-request at octave dot org Mon May 9 15:54:40 2005 Subject: Re: ./configure does not recognize umfpack library. From: David Bateman To: Help-Octave Date: Mon, 09 May 2005 22:53:48 +0200 > Perhaps I am missing something, but I do have shared octave and it is > compiled against static umfpack: Dmitri, Octave 2.9.x builds fine without UMFPACK, but can't solve full sparse equations, though with the use of the LAPACK tridiagonal and banded solvers and code for back substitution for triangular matrices it can still solve many cases... Try a = 100*speye(100,100) + sprandn(100,100,0.05); [l,u,p] = lu (a); and I'll bet you get an error, since the LU function won't find UMFPACK and will fail with an error... Cheers David -- David Bateman David dot Bateman at motorola dot com Motorola Labs - Paris +33 1 69 35 48 04 (Ph) Parc Les Algorithmes, Commune de St Aubin +33 1 69 35 77 01 (Fax) 91193 Gif-Sur-Yvette FRANCE The information contained in this communication has been classified as: [x] General Business Information [ ] Motorola Internal Use Only [ ] Motorola Confidential Proprietary ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------