Originally published by John Wiley & Sons in 1982, Partial Differential Equations for Scientists and Engineers was reprinted by Dover in 1993. Each chapter of the text contains a selection of relevant problems, with answers to selected problems. The treatment is now supplemented by this complete solutions manual. Written for advanced undergraduates in mathematics as well as professionals working in the applied sciences, the widely used and extremely successful text shows how to formulate a partial differential equation from the physical problem (constructing the mathematical model) and how to solve the equation (along with initial and boundary conditions). Topics include diffusion-type problems, hyperbolic-type problems, elliptic-type problems, and numerical and approximate methods. Dover republication of the author's self-published 2016 edition.