Created by David Smith for the Connected Curriculum Project,The purpose of this module is to explore the van der Pol model for a nonlinear electrical circuit -- in particular, to study the limit cycle phenomenon. This...

Created by Lang Moore and David Smith for the Connected Curriculum Project, the purpose of this module is to investigate the trajectories in the phase plane of 2x2 homogeneous linear systems of first-order differential...

Created by David Smith for the Connected Curriculum Project, the purpose of this module is to study data that may be modeled by a differential equation of the formdy/dt = k (y - b)-- in particular, to determine the...

Programs for students about to start first and second year courses in Mathematics. Students can test themselves to see whether they are ready for intermediate algebra, college algebra, business calculus, calculus I, II,...

Created by Lang Moore and David Smith for the Connected Curriculum Project, this module explores the applicability of a linear differential equation as a model for the process of sprinting, and to illustrate the...