Control theory is largely an application of the theory of complex variables,
modern algebra, and linear algebra to engineering. The main question
that control theory answers is "given reasonable inputs, will my system
give reasonable outputs?" Much of the answer to this question is given
in the following pages. There are many books that cover control theory.
What distinguishes this book is that it provides a complete introduction
to control theory without sacrificing either the intuitive side of the subject
or mathematical rigor. This book shows how control theory fits into the
worlds of mathematics and engineering.