On 3/10/11, Zbigniew Komarnicki <cblasius@gmail.com> wrote: > octave:1> a=rand(3,3) > a = > > 0.189941 0.570931 0.517541 > 0.092924 0.449368 0.680880 > 0.146931 0.266066 0.706786 > > octave:2> eig(a) I had the same problem, but on a non-Debian system. On my system the problem was caused by using the SSE3 atlas libraries and was fixed by installing with SSE2 libraries.