Sebastian Schöps » Computer http://www.schoeps.org/home www.schoeps.org Fri, 03 Feb 2012 19:52:50 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Octave 3.4.2 on openSUSE 11.4 http://www.schoeps.org/home/2011/08/octave-3-4-2-on-opensuse-10-4/ http://www.schoeps.org/home/2011/08/octave-3-4-2-on-opensuse-10-4/#comments Mon, 22 Aug 2011 13:30:15 +0000 Sebastian http://www.schoeps.org/home/?p=1453 A = sprandsym(1000,0.01); b = rand(1000,1); norm(A*(A\b)-b).]]> Finally, the science repository for openSUSE comes with a recent Octave version that supports UMFPACK. Add the corresponding repository

sudo zypper ar http://download.opensuse.org/repositories/science/openSUSE_Tumbleweed/ opensuse:science

and install the package

sudo zypper in octave

You verify that UMFPACK works by the following computation

A=sprandsym(1000,0.01)+eye(1000);b=rand(1000,1);norm(A*(A\b)-b)

which solves a linear system with a sparse symmetric positive definite system matrix A and prints the residual to the console.

Hence it is not necessary to compile Octave on your own as previously described in this article.

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