Discrete Predator-Prey Model

Warren Weckesser

This form allows you compute the iterations of the discrete-time predator-prey model

xn+1 = 2(1-xn)xn - β xnyn
yn+1 = 0.8yn + 3 β xnyn

Enter the following data, select your output options, and then click on Show Solution below.

β =

Initial conditions:
x0 =
y0 =

Number of iterations: (Maximum is 500.)

Output Options

Show: x0   Final xn

Time Series Plots

PlotVertical AxisPlot Lines
x y
x y

Copyright (c) 2005 Warren Weckesser