logistic map
as a model for population growth. N(t) is the population at time t. For small N, we have dN/dt ≈ rN(t) and so approximately exponential growth with growth rate r. However, as N becomes comparable to a carrying capacity K, the effective growth rate reduces. The general solution is
where A is a positive constant. The graph of N(t) is an increasing S-shaped curve with N(t) tending to 0 as t→−∞ and N(t) tending to K as t→∞.
- null set
- null set
- null space
- Nullstellensatz
- null vector
- number
- number field
- number line
- Numberphile
- number systems
- number theory
- numeral
- numerator
- numerical analysis
- numerical differentiation
- numerical integration
- numerical stability
- numerical value
- O
- o
- objective function
- objective row
- oblate
- oblique
- oblong