In Exterior Differential Systems, the authors present the results of their ongoing development of a theory of the geometry of differential equations, focusing especially on Lagrangians and Poincare-Cartan forms. They also cover certain aspects of the theory of exterior differential systems, which provides the language and techniques for the entire study, because it plays a central role in uncovering geometric properties of differential equations, the method of equivalence is particularly emphasized. In addition, the authors discuss conformally invariant systems at length, including results on...

An updated version of the bestselling, Game Testing All In One, this book equips the reader with the rationale for vigorous testing of game software, how game testing and the tester fit into the game development process, practical knowledge of tools to apply to game testing, game tester roles and responsibilities, and the measurements to determine game quality and testing progress. The reader is taken step-by-step through test design and other QA methods, using real game situations. The book includes content for the latest console games and the new crop of touch, mobile, and social...

An updated version of the bestselling Game Testing All In One 2/E, this book equips the reader with the rationale for vigorous testing of game software, how game testing and the tester fit into the game development process, practical knowledge of tools to apply to game testing, game tester roles and responsibilities, and the measurements to determine game quality and testing progress. The reader is taken step-by-step through test design and other QA methods, using real game situations. The book includes content for the latest console games and the new crop of touch, mobile, and social...