DFIELD5 is an interactive tool for studying single first order differential equations. When DFIELD5 is executed, a DFIELD5 Setup window is opened. The user may enter the differential equation and specify a display window using the interactive controls in the Setup window.



When the Proceed button is pressed on the Setup window, the DF Display window is opened. At first this window displays a direction line field for the differential equation. When the mouse button is depressed in the DFIELD5 Display window, the solution to the differential equation with that initial condition is calculated and plotted.