07-Jan-2022 15:54:53 backward_euler_test(): MATLAB/Octave version 9.8.0.1380330 (R2020a) Update 2 Test backward_euler(). predator_prey_backward_euler(): A pair of ordinary differential equations for a population of predators and prey are solved using the backward Euler method, solving the implicit function using fsolve(). The exact solution shows periodic behavior, with a fixed period and amplitude. Graphics saved as "predator_prey_backward_euler.png" predator_prey_backward_euler(): Normal end of execution. stiff_backward_euler() Use backward_euler() to solve the stiff ODE. Graphics saved as "stiff_backward_euler.png" stiff_backward_euler() Normal end of execution. backward_euler_test(): Normal end of execution. 07-Jan-2022 15:54:59