Matrix algebra is one of the most important areas of mathematics for
data analysis and for statistical theory. This much-needed work presents
the relevant aspects of the theory of matrix algebra for applications in
statistics. It moves on to consider the various types of matrices
encountered in statistics, such as projection matrices and positive
definite matrices, and describes the special properties of those
matrices. Finally, it covers numerical linear algebra, beginning with a
discussion of the basics of numerical computations, and following up
with accurate and efficient algorithms for factoring matrices, solving
linear systems of equations, and extracting eigenvalues and
eigenvectors.