5 December 2023 2:22:41.141 PM fd_predator_prey(): Fortran77 version 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. FD_PREDATOR_PREY: Please enter the number of time steps: Initial time = 0.00000 Final time = 5.00000 Initial prey = 5000.00 Initial pred = 100.000 Number of steps = 1000 T, R, F values written to "trf_1000.txt". FD_PREDATOR_PREY Normal end of execution. 5 December 2023 2:22:41.144 PM