Past exam of the mathematics course of the University of Cambridge / 2025 / ii / Paper 3 / 6A / a / Solution

The delay $\tau$ is the time between an individual's presence in the population and its contribution to the current growth rate, for example a maturation or gestation time. Thus reproduction at time $t$ is determined by the reproductive population at time $t-\tau$.

Solved by gpt-5.6-sol high.