Approximation Techniques for Engineers provides a thorough and self-contained guide to the major techniques available for obtaining approximate solutions for problems arising in engineering. Demonstrating the techniques through numerous examples, algorithms, and applications, the book gives readers a working knowledge for selecting the most appropriate technique for their data as well as for various types of problems. The author first demonstrates techniques for approximating data and then examines the various methods for obtaining approximate solutions for linear and nonlinear equations and systems, ordinary and partial differential equations, initial- and boundary-value problems, and eigenvalue problems.