Calculation of eigenvalues, eigenvectors fails

On 21/08/06, Felix E. Klee <felix.klee at inka.de> wrote:
> I recently installed Maxima under LINUX for someone who needs to do
> matrix calculations.  Unfortunately, the first test we threw at it
> failed:
>   (%i1) eigenvectors(matrix([0,3,2],[3,0,1],[2,1,0]));

Hmm...

   (%i3) load("eigen");
   (%o3)           /usr/share/maxima/5.9.3/share/matrix/eigen.mac
   (%i4) eivects(M);

   algsys failure: the eigenvector(s) for the 1 th eigenvalue will be missing.

   algsys failure: the eigenvector(s) for the 2 th eigenvalue will be missing.

   algsys failure: the eigenvector(s) for the 3 th eigenvalue will be missing.

[Indeed, eigenvalues are computed, but no eigenvectors].

Makes me wonder what this "failure" could be.

- Jordi G. H.