The first coherent treatment of the subject in nearly two decades—an important working resource for researchers and a superior graduate-level text Variational Principles and the Numerical Solution of Scattering Problems is designed to serve as both a professional guide and a self-contained graduate-level text. Writing at a level accessible to students with a knowledge of basic quantum mechanics, Dr. Sadhan K. Adhikari treats most major numerical methods for solving scattering problems. While the emphasis is on variational methods, Dr. Adhikari also discusses important nonvariational methods and their applications to realistic problems in molecular, atomic, and nuclear physics. The first part of the book presents the major variational principles and numerical methods for scattering, using a pedagogic style appropriate to graduate courses. The remaining parts, especially useful to researchers interested in performing scattering calculations, include: Applications of variational principles in realistic multichannel problems Numerical applications of the methods described to realistic scattering problems Up-to-date reviews of recent benchmark scattering calculations Variational Principles and the Numerical Solution of Scattering Problems is an important working reference for physicists involved with scattering problems as well as graduate students in nuclear, atomic, and molecular physics. It saves hours of searching the world literature on the subject and provides a direct connection to contemporary numerical approaches to solving scattering problems.