This applet calculates the zygote and adult allele and genotype frequencies according to the Fisher-Haldane-Wright model of population genetics, and plots the results.
This applet iterates a difference equation (also known as recurrence relation) and displays the resulting sequence both graphically and numerically.
This worksheet performs iteration and produces cobweb diagrams for a first-order difference equation (AKA recurrence relation, discrete dynamical system).
This applet shows a linear approximation to a non-linear difference equation close to an equilibrium, using cobwebbing. It can be used to investigate the accuracy of a linear approximation, or to motivate the linear stability criterion for equilibria of a first-order difference equation.
This applet displays the direction field and solutions for an ordinary differential equation (ODE), and calculates approximate solutions using Euler’s method.
This applet displays the direction field and solutions for an ordinary differential equation (ODE).