exponential grown equation
used to predict the change in population size growing exponentially when individuals reproduce continuously and the generations overlap
N_{t }= N_{0} x e^{rt}
generates instananeous estimates of populations size
r = instantaneous per capita rate of population increase
N_{(t) }= N_{(0)}e^{rt
dN/dt = rNdN/dt = net rate of population change, rate at which the size of the population as a whole is changing at a given instant in time, slope of line tangent to anywhere on the curve
Nt = N0 x ert
r = lnY
}