27 May 2025 9:04:05.356 PM bdf3_test(): Fortran90 version Test bdf3(). predator_prey_bdf3_test() A pair of ordinary differential equations for a population of predators and prey are solved using bdf3(). The exact solution shows periodic behavior, with a fixed period and amplitude. predator_prey_bdf3_test: data stored in "predator_prey_data.txt". predator_prey_bdf3_test: plot commands stored in "predator_prey_commands.txt". stiff_bdf3_test(): Solve stiff ODE using bdf3() plot2: data stored in "stiff_data1.txt" and "stiff_data2.txt". plot2: plot commands stored in "stiff_commands.txt". bdf3_test(): Normal end of execution. 27 May 2025 9:04:05.357 PM