This book features the use of MATLAB tp present introductory and advanced finite element theories and formulations. Because MATLAB manipulates matrices and vectors with ease, MATLAB is especially convenient for writing finite element analysis programs. MATLAB's graphical routines can also easily plot program results. This book is written as a textbook for upper-level undergraduate and lower-level graduate courses, as well as a reference book for engineers and scientists who want ro write quick finite element analysis programs.