title: How to find eigenvectors and eigenvalues without numpy and scipy?
body: <p>I need to calculate eigenvalues and eigenvectors in python. numpy and scipy do not work. They both write <code>Illegal instruction (core dumped)</code>. I found out that to resolve the problem I need to check my blas/lapack. So, I thought that may be an easier way is to write/find a small function to solve the eigenvalue problem. Does anybody know if such solutions exist?</p>