References in approximate order of
increasing difficulty and sophistication:
 D. Watkins, Fundamentals of Matrix Computations, 3rd Edn.,
John Wiley, 2010.
 L.N. Trefethen and D. Bau, III, Numerical Linear Algebra,
SIAM, 1997.
 J.W. Demmel, Applied Numerical Linear Algebra, SIAM, 1997.
 A. Bjorck, Numerical Methods in Matrix Computations, Springer, 2015.
 G.H. Golub & C.F. Van Loan, Matrix Computations, 4th Edn.,
The Johns Hopkins University Press, Baltimore, 2013.
We mainly use our lecture notes,
which are available from myCourses
