Assume there is a certain population of fish in a pond whose growth is described by the logistic equation. The growth parameter for this type of fish is r = 1.9.

If the starting population is given by $\displaystyle {p}_{{0}}={0.4}$, then after one breeding season the population of the pond is given by

$\displaystyle {p}_{{1}}$ =

After two breeding seasons the population of the pond is given by

$\displaystyle {p}_{{2}}$ =