Tue May 20 21:18:35 2025

bdf2_test():
  python version: 3.10.12
  numpy version:  1.26.4
  scipy version:  1.8.0
  Test bdf2().

predator_prey_bdf2():
  A pair of ordinary differential equations for a population
  of predators and prey are solved using the BDF2,
  solving the implicit function using fsolve().

  The exact solution shows periodic behavior, with a fixed
  period and amplitude.
  Graphics saved as "predator_prey_bdf2.png"

stiff_bdf2()
  Use bdf2() to solve the stiff ODE.
  Graphics saved as "stiff_bdf2.png"

bdf2_test():
  Normal end of execution.

Tue May 20 21:18:37 2025