Basic mathematics notation
- Time points: \( t_0,t_1,\ldots,t_m \)
- Uniform distribution of time points: \( t_n=n\Delta t \)
- \( H^n \): population of hares at time \( t_n \)
- \( L^n \): population of lynx at time \( t_n \)
- We want to model the changes in populations, \( \Delta H=H^{n+1}-H^n \)
and \( \Delta L=L^{n+1}-L^n \) during a general time interval \( [t_{n+1},t_n] \)
of length \( \Delta t=t_{n+1}-t_n \)