Emphasizing a top-down design methodology, this introduction to Fortran 90 and Fortran 95 for engineering students teaches simultaneously the fundamentals of the Fortran language and a programming style that results in good, maintainable programs. B.E.S.T. (Basic Engineering Series and Tools) consists of modularized textbooks offering virtually every topic and speciality likely to be covered in an introductory engineering course. All the texts boast distinguished authors and the most current content. These inexpensive BEST modules are easily combined with each other to construct an introduction to an engineering course.