Differential Equations and Boundary Value Problems: Computing and Modeling, 4/E Authors: C. Henry Edwards and David E. Penney. There are different reviews of this book [http://www.amazon.com/Differential-Equations-Computing-Modeling-Edition/dp/0136004385][1] [1]: http://www.amazon.com/Differential-Equations-Computing-Modeling-Edition/dp/0136004385