The conversation between human and AI assistant.
Can eigen values be negative?
How can I determine the signs of eigenvalues?
One way to determine the signs of eigenvalues is by looking at the determinant of the matrix. If the determinant is positive, then all the eigenvalues are either positive or negative. If it is negative, then there is at least one positive and negative eigenvalue. If it is zero, then there is at least one zero eigenvalue.