As more and more demands are placed on the nation's power systems, predicting and updating the operating status of a network through systems analysis becomes increasingly important. This book provides a comprehensive study of the various computational methods that form the basis of many analytical studies of power systems. The author presents the analytical background of the algorithms used in many commercially available software packages, thereby enabling readers to make more informed decisions in their use of the software and correctly interpret their results. The book furnishes a well-balanced discussion of theory and application of the algorithms and supports them with instructional examples and illustrations.