A mandatory undergraduate course on numerical analysis. This semester the format of the course has changed — the second half of the course is given by me, and it is focused on Numerical Linear Algebra (NLA), covering topics such as LU factorization, Least-Squares, QR decomposition, eigenvalues and SVD, iterative methods for solving linear systems of equations, iterative methods for LS, iterative methods for finding eigenvalues, and possibly (if time permits), introduction to Fourier analysis.