With this revised edition, students can gain a more comprehensive understanding of differential equations. The book exploits students' access to computers by including many new problems and examples that incorporate computer technology. Many of the problems now also call for graphing solutions or statements about their behaviour. In doing this, the text clearly demonstrates why solutions are no more important than the conclusions that can be drawn from them. New to the 6th Edition: more figures within text plus problems chosen to promote a more visual understanding of differential equations; nearly 300 new problems; problems that explore the effect of changing parameter values; an update of the Numerical Methods chapter; many new examples and figures.