Calculus of Variations - (Dover Books on Mathematics) by Robert Weinstock (Paperback)

This book by Robert Weinstock is a comprehensive introduction to the calculus of variations, covering various topics such as isoperimetric problems, geometrical optics, Fermat's principle, dynamics of particles, Sturm-Liouville eigenvalue-eigenfunction problem, theory of elasticity, quantum mechanics, and electrostatics.

The book provides a clear and concise explanation of the concepts with an emphasis on practical applications, making it accessible to readers who have mastered first-year calculus with some exposure to ordinary differential equations.

The author's approach is easy to follow, with lists of essential formulae and derivations provided throughout the book.

The exercises at the end of each chapter are also very useful in determining whether the material has been thoroughly grasped.

This book is a must-have for physicists, engineers, and applied mathematicians who want to gain a deeper understanding of the calculus of variations and its applications.