In this book, you will learn how to handle differential equations of all difficulty levels. You start with first-order differential equations and discover what separable differential equations are and what defines exact differential equations. Next, you will encounter linear homogeneous and linear inhomogeneous differential equations of higher order. You will get to know the method of undetermined coefficients and the method of parameter variation. The really tough challenges will be tackled with Laplace transformations and series solutions. And when all else fails, you can always rely on numerical solutions. They almost always work.