I would like to get the eigen values of a sparse matrix
of form
[ a, b, c, d, e;
1, 0, 0, 0, 0;
0, 1, 0, 0, 0;
0, 0, 1, 0, 0;
0, 0, 0, 1, 0]
in matlab/octave I use the following to generate the matrix
% filename nfactor.m written by Jeff Sadowski
% nfactor finds the...