This edition is riddled with typographical errors and general computational mistakes. Though some of this text's lack of clarity is due to the subject matter itself, it certainly isn't carefully-edited enough to make it more understandable. Very little is given by way of explanation, and solutions to the many problems in the text are given sparsely. The only positive thing I can say is that the problems in the text are generally appropriate for the material, but as an introduction to the subject, this text leaves you basically on your own.