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 Title Variational Principles in Classical Mechanics
 Author(s) Douglas Cline
 Publisher: River Campus Libraries; 2nd edition (August 1, 2018); eBook (January 15, 2019)
 License(s): CC BYNCSA 4.0
 Paperback 598 pages
 eBook PDF (589 pages)
 Language: English
 ISBN10: 099883727X
 ISBN13: 9780998837277
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Book Description
Two dramatically different philosophical approaches to classical mechanics were proposed during the 17th – 18th centuries. Newton developed his vectorial formulation that uses timedependent differential equations of motion to relate vector observables like force and rate of change of momentum. Euler, Lagrange, Hamilton, and Jacobi, developed powerful alternative variational formulations based on the assumption that nature follows the principle of least action. These variational formulations now play a pivotal role in science and engineering.
This book introduces variational principles and their application to classical mechanics. The relative merits of the intuitive Newtonian vectorial formulation, and the more powerful variational formulations are compared. Applications to a wide variety of topics illustrate the intellectual beauty, remarkable power, and broad scope provided by use of variational principles in physics.
This second edition adds discussion of the use of variational principles applied to the following topics: 1) Systems subject to initial boundary conditions 2) The hierarchy of the related formulations based on action, Lagrangian, Hamiltonian, and equations of motion, to systems that involve symmetries 3) Nonconservative systems. 4) Variablemass systems. 5) The General Theory of Relativity.
About the Authors Douglas Cline is a Professor of Physics at University of Rochester.