20-Oct-2022 11:43:40

rk12_test():
  MATLAB/Octave version 4.2.2
  Test rk12().
  Graphics saved as "predator_rk1_time.png"
  Graphics saved as "predator_rk1_phase.png"
  Graphics saved as "predator_rk2_time.png"
  Graphics saved as "predator_rk2_phase.png"
ans = 0
ans =  5.0000
ans =  1725.1
ans =    1.0980e+04
ans = -5.0543
ans =  3.2963
  Graphics saved as "error_rk12_time.png"
  Graphics saved as "error_rk12_phase.png"

rk12_test():
  Normal end of execution.

20-Oct-2022 11:43:42