How to use the Van der Pol Circuit Tool

Setting Initial Conditions

• Click the mouse on the phase plane to set the initial conditions for a trajectory.

Parameter Slider

• Use the slider to set the nonlinear resistance parameter e.
• Press the mouse down on the slider knob for the parameter and drag the mouse back and forth, or click the mouse in the slider channel at the desired value for the parameter.

Time Series Buttons

• The buttons labeled
  [x] Current i
  [x] Voltage across inductor v
  [x] Nonlinear resistance R
  turn the time series graphs on and off.

Other Buttons

• [Clear] removes all the trajectories from the graph.