Many differential equations with which you will be confronted in applications are not amenable to exact solution techniques which you learn in an ODE class. One tool in the analysis of such equations is the use of numerical differential equation solving packages. Others involve advanced mathematical analysis which seeks to describe the qualitative behavior and obtain estimates for the solution of a differential equation, even though an explicit formula for the solution is not available. We will just show here how MATLAB can be used as a tool to solve and plot approximate solutions to differential equations.