The first edition of this book was published in 1980. Many significant changes
were made for the second edition (1986), most notably the exercise sets were greatly
expanded and the linear transformations chapter of the book was completely revised.
Each of the following editions has seen significant modifications including the additi
of comprehensive sets of MATLAB computer exercises, a dramatic increase in the
number of applications, and many revisions in the various sections of the book. I have
been fortunate to have had outstanding reviewers and their suggestions have led to
many important improvements in the book. For the ninth edition we have given special
attention to Chapter 7 as it is the only chapter that has not seen major revisions in any
of the previous editions. The following is an outline of the most significant revisions
that were made for the ninth edition.