Lecture 0: Linear Algebra Background

@inproceedings{Lecture0L,
  title={Lecture 0: Linear Algebra Background},
  author={}
}
    In which we review linear algebra prerequisites. The following background from linear algebra will be sufficient for the sake of this course: to know what is an eigenvalue and an eigenvector, to know that real symmetric matrices have real eigenvalues and their real eigenvectors are orthogonal, and to know the variational characterization of eigenvalues.