Section 2.8

Diagonally dominant matrices and banded matrices were new topics that I never have learned about before but they are relatively easy to understand. The symmetric positive definite matrices seem a little more confusing but understandable somewhat. I think that the condition x^T * A* x>0 is an interesting concept since it produces a scalar which shouldn't be a surprise but its just interesting. I don't know if I completely understand the purpose of the Cholesky factorization though.