Differential Models: An Introduction with Mathcad
From the reviews:"The purpose of the book is to provide students and specialists in science and engineering with a knowledge necessary to carry out an in-depth study of applied problems. … The book shall prove useful for engineers and engineering students who wish to increase the efficiency of applied research with the help of a powerful and versatile software package Mathcad." (Yuri V. Rogovchenko, Zentralblatt MATH, Vol. 1056, 2005)