This third edition provides a simple, basic approach to the finite element method that can be understood by readers. It does not have the usual prerequisites (such as structural analysis) required by most available books in this area. The book is written primarily as a basic learning tool for civil and mechanical engineering readers whose main interest is in stress analysis and heat transfer. The book is geared toward those who want to apply the finite element method as a tool to solve practical physical problems.
This book gave me experience to apply linear algebra extensively. It uses vectors to analyse nodes in structures. The vectors are calculated using matrix (Gauss Jordan etc.). If you are really good in programming, you can use this book as basic theory for writing optimation software.