dxt/dt=rxt ⇔ xt=x0ert

plot

If the growth is proportional to the current population, this system is called exponential growth. When r<0, the population will increase to infinite. When r>0, the population will extinct and it is called exponential decay. Try some negative r value smaller than 0.


r : Intrinsic Rate of Natural Increace

x0 : Initial Population

Simulation Time