Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied? Title: chewy but good for you Review: I have not finished the book yet. But I appreciate the approach taken by Dr. Allen. Although written with the engineer in mind, the book right away associates the filter formalisms to the rich body of knowlege of analytic functions. It aims to connect the analytic character of real filters to the rich and mature theory. Don't fret! It's not an intro monologue. Rather, it's concise and comprehensive. For the mathematically inclined wishing to learn filter theory, this book is for you. Or for the math-savy engineer wishing to add electrical engineering depth, this book is also for you. But for the uninitiated and/or weak hearted, this book may benefit you.

satisfied