Never mind...it was easy. Apparently the process of deleting rows and columns is too complex for me. In case you're curious, it's:
v_n - \sum_{i=1}^{n-1} v_i^2
Now this could seem like a homework problem...but it's not. (I guess you'd need to believe me or just choose not to answer my question.) I'm trying to compute the eigenvalues of a matrix and it's a little more irritating than I'd expected. All I really care is if they're positive (so all I...