Optimal Control: Linear Quadratic Methods (Dover Books on Engineering)

**** "Optimal Control: Linear Quadratic Methods," authored by a prominent figure in control theory, Anderson, is widely acknowledged as a classic text within the field. However, customer experiences vary significantly, particularly regarding the book's accessibility and usability for self-learners. It serves as an excellent reference material for those already familiar with the subject, especially at the graduate level, making it a valuable resource for PhD students focusing on areas like astrodynamics and formation flying. Despite its reputation, the book is often criticized for its challenging readability. Reviewers noted that the text might not be suitable for newcomers to optimal control due to its complex presentation and outdated notation, which might confuse modern-day readers. The mathematics is described as lacking rigor, and there are concerns regarding the clarity of explanations and the logical flow of concepts presented within the chapters. Several users recommend finding alternative texts that present advanced Linear Quadratic Regulator (LQR) concepts more clearly, suggesting they may offer a better learning experience. Overall, while "Optimal Control: Linear Quadratic Methods" is respected as a reference work, its practical application for self-study appears limited, and many recommend it primarily for those with prior knowledge in optimal control principles. **