FORTRAN is the pioneer computer language originally designed to suit numerical, scientific and engineering computations. In spite of the birth of several computer languages, FORTRAN is still used as a primary tool for programming numerical computations. In this book all the features of FORTRAN 77 have been elaborately explained with the support of examples and illustrations.? Programs have been designed and developed in a systematic way for all the classical problems. All the topics of Numerical Methods have been presented in a simple style and algorithms developed. Complete FORTRAN 77 programs and more than one sets of sample data have been given for each method. The content of the book have been carefully tailored for a course material of a one semester course for the Computer Science, Mathematics and Physics students. About The Author: Dr. C. Xavier is with HCL working on Telecom Business Support Systems. Before joining HCL, he was heading the Department of Computer Science in St. Xavier`s College (Autonomous), Tirunelveli in Tamil Nadu, India. He has written books on Web Technologies such as HTML, JavaScript, and JSP, Programming Language such as Java 2, FORTRAN, BASIC, and C and Computer Concepts such as Introduction to Computers, Numerical Methods and Parallel Algorithms. He got his Ph.D. degree in Computer Science from Madurai Kamaraj University for his research in Parallel Algorithms. He has successfully guided six researchers for the award? of Ph.D. in Computer Science. John Wiley Inc, New York, has published his book on Introduction to Parallel Algorithms in America and the same has been translated into Chinese language and published in China. He has served as a member? of the Information Technology Task Force Subcommittee of Government of Tamil Nadu for three years f