Tue May 20 21:18:10 2025 backward_euler_test(): python version: 3.10.12 numpy version: 1.26.4 Test backward_euler. humps_backward_euler(): Solve the humps ODE system using backward_euler(). Graphics saved as "humps_backward_euler.png" predator_prey_backward_euler(): Solve the predator prey ODE system using backward_euler(). Graphics saved as "predator_prey_backward_euler.png" backward_euler_test: Normal end of execution. Tue May 20 21:18:11 2025