Instruct: Classify Amazon reviews into positive or negative sentiment
Query: incomprehensible trash

This book reads like it was compiled from notes written on the back of napkins by some scatter-brained professor. It lacks any sort of logical organization. Convoluted Matlab code is sprinkled throughout the book without any comments or explanations. Even worse are the long numerical tables of program output that are frequently offered up without any context. Mathematical theory is treated as secondary to the meaningless snippets of MatLab code. Explanations of concepts, when the author is so gracious as to include them at all, are terse and incomplete. This is quite simply the worst textbook that I have ever encountered. It is a disgrace that this book ever made it through publishing. Save your money for something else; you cannot learn mathematics from a schizophrenic cookbook.