30 November 2023   7:28:11.736 PM

trapezoidal_test():
  Fortran77 version
  Test trapezoidal().

predator_prey_tr_test()

  A pair of ordinary differential equations
  for a population of predators and prey 
  are solved using trapezoidal().

  The exact solution shows periodic behavior
  with a fixed period and amplitude.
 
  predator_prey_tr_test: data stored in "predator_prey_data.txt".
  predator_prey_tr_test: plot commands stored in "predator_prey_commands.txt".

stiff_tr_test():
  Solve stiff ODE using backward_euler()
 
  plot2: data stored in "stiff_data1.txt" and "stiff_data2.txt".
  plot2: plot commands stored in "stiff_commands.txt".

trapezoidal_test():
  Normal end of execution.

30 November 2023   7:28:11.741 PM