predator_answers

Matlab:

• euler.m, the Euler ODE solver.
• predator_deriv.m, a function which defines the derivatives associated with the predator-prey ODE system.
• predator_euler.m, a script to test the Euler code with predator_deriv(), producing a solution plot.
• predator_euler_conservation.m, solve the predator-prey ODE, plot the solution and phase plane, tabulate the conservation quantity.
• predator_euler_phase.m, a script to test the Euler code with predator_deriv(), producing a phase plane plot.

Images:

• predator_euler_1000000.png, the euler version of the predator-prey solution.
• predator_euler_conservation_10000.png, the euler version of the predator-prey conservation plot.
• predator_euler_phase_100000.png, the euler version of the predator-prey phase plane.