Tue Oct 19 11:33:55 2021 euler_test(): Python version: 3.6.9 Test euler(). humps_euler(): Solve the humps ODE system using euler(). Graphics saved as "humps_euler.png" predator_prey_euler: Solve the predator prey ODE system using euler(). Graphics saved as "predator_prey_euler.png" euler_test(): Normal end of execution. Tue Oct 19 11:33:56 2021