**fd_predator_prey_test**,
a FORTRAN90 code which
calls fd_predator_prey(), which
applies the finite difference method to estimate solutions of a
pair of ordinary differential equations that model the behavior of
a pair of predator and prey populations, and plots the data with
gnuplot().

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

fd_predator_prey, a FORTRAN90 code which applies the finite difference method (FDM) to a predator-prey system with time dependence and no spatial variation, and plots the data with gnuplot().

- fd_predator_prey_test.sh, runs all the tests.
- fd_predator_prey_test.txt, the output file.

- fd_predator_prey_100.png, uses 100 time steps on a fixed interval.
- fd_predator_prey_1000.png, uses 1000 time steps on a fixed interval.
- fd_predator_prey_10000.png, uses 10000 time steps on a fixed interval.