Thu Sep 13 09:13:00 2018 FD_PREDATOR_PREY_TEST: Python version: 3.6.5 Initial number of prey is 5000 Initial number of predators is 100 Time span is [0,5] Number of time steps will be 1000 FD_PREDATOR_PREY A finite difference approximate solution of a pair of ordinary differential equations for a population of predators and prey. The exact solution shows wave behavior, with a fixed period and amplitude. The finite difference approximation can provide a good estimate for this behavior if the stepsize DT is small enough. Figure saved as "trf_1000_time.png" Figure saved as "trf_1000_phase.png" T, R, F values written to "trf_1000.txt". FD_PREDATOR_PREY Normal end of execution. Thu Sep 13 09:13:04 2018