This applet demonstrates an exponential growth model
which plots Population P_{i} for i = 1 to i = 600 given user input
for the initial population P_{0} and the Growth Rate G. The
difference equation used is
P_{i+1 }= P_{i} + G*P_{i}

Use the slider to adjust the Growth Rate and drag the small rectangle on
the left boundary to set the initial population P_{0}.