6 October 2025   6:14:48.414 PM
 
fd_predator_prey():
  Fortran90 version
  A finite difference approximate solution of a pair
  of ordinary differential equations for a population
  of predators and prey.
 
  The exact solution shows wave behavior, with a fixed
  period and amplitude.  The finite difference
  approximation can provide a good estimate for this
  behavior if the stepsize DT is small enough.
 
  Initial time    =    0.00000    
  Final time      =    5.00000    
  Initial prey    =    5000.00    
  Initial pred    =    100.000    
  Number of steps =      100

  Gnuplot data written to file "fd_predator_prey_data.txt".
  Gnuplot commands written to "fd_predator_prey_commands.txt".
 
FD_PREDATOR_PREY
  Normal end of execution.
 
 6 October 2025   6:14:48.415 PM
 6 October 2025   6:14:48.458 PM
 
fd_predator_prey():
  Fortran90 version
  A finite difference approximate solution of a pair
  of ordinary differential equations for a population
  of predators and prey.
 
  The exact solution shows wave behavior, with a fixed
  period and amplitude.  The finite difference
  approximation can provide a good estimate for this
  behavior if the stepsize DT is small enough.
 
  Initial time    =    0.00000    
  Final time      =    5.00000    
  Initial prey    =    5000.00    
  Initial pred    =    100.000    
  Number of steps =     1000

  Gnuplot data written to file "fd_predator_prey_data.txt".
  Gnuplot commands written to "fd_predator_prey_commands.txt".
 
FD_PREDATOR_PREY
  Normal end of execution.
 
 6 October 2025   6:14:48.460 PM
 6 October 2025   6:14:48.511 PM
 
fd_predator_prey():
  Fortran90 version
  A finite difference approximate solution of a pair
  of ordinary differential equations for a population
  of predators and prey.
 
  The exact solution shows wave behavior, with a fixed
  period and amplitude.  The finite difference
  approximation can provide a good estimate for this
  behavior if the stepsize DT is small enough.
 
  Initial time    =    0.00000    
  Final time      =    5.00000    
  Initial prey    =    5000.00    
  Initial pred    =    100.000    
  Number of steps =    10000

  Gnuplot data written to file "fd_predator_prey_data.txt".
  Gnuplot commands written to "fd_predator_prey_commands.txt".
 
FD_PREDATOR_PREY
  Normal end of execution.
 
 6 October 2025   6:14:48.530 PM