function xdot = rabbits(x)
  % The rate of growth of the rabbit population as function of the
  % current size of the population
  xdot(1) = x(1) * (-0.1 * x(1) + 1);

  % The same for coyotes
  xdot(2) = x(2) * (-0.2 * x(2) + 2);
endfunction
%
% Note: In this example. the populations are "decoupled", i.e.
% there is no interaction whatsoever. In practical terms,
% the equation for xdot(1) does not depend on x(2), and
% vice versa.
% The system of differential equations should be described
% as a "decoupled pair of logistic equations".
%
