The book contains concise descriptions of solution methods of partial differential equations including the types of hyperbolic, parabolic, elliptical equations, and the methods of separation of variables and of Greens functions as well as eigen analysis. A good reference for studying wave equations, heat equations, Sturm-Liouville equations as well as Laplace equations in 1-, 2-, and 3-dimensions. It contains more than 50 examples with detailed solutions throughout the text while more than 100 homework sets and midterm and final exams problems were also carefully chosen and solved. As a...