"… provides a good introduction of using orthogonal function approaches for state estimation and optimal control problems. … the first book I’ve seem that puts it all together in one text. … The authors provide several detailed examples that clearly explain how the shown theory can be applied. This makes it much easier to understand the basic algorithms."—John L. Crassidis, University at Buffalo, State University of New York"The approach and selection of topics are very appropriate, because the book has considered all the important components of optimal control problems using orthogonal functions. … Overall, the book is quite good and comprehensive."—Anish Deb, University of Caluctta, India"A majority of the presentation relies on existing results; the authors main contribution is contained in Chapters 7–10. This book may be useful to postgraduate and doctoral students interested in system and control theory as well as inspiring to control engineers."—Zentralblatt Math,Vol. 1272