INSTALLATION:
Download the file ODESolver.opx, and then drag-and-drop onto the Origin workspace. An icon will appear in the Apps Gallery window.
OPERATION:
Click the icon to open the dialog. Define the equation, integration interval and initial conditions. The tool provides three options for method: Runge-Kutta, Adams and BDF(Stiff).
Click the help button in the dialog to open the help file, which includes explanation of the dialog settings and two examples.