• Arc length animation
  Approximating arc length on a helix-like curve
• Arc length animation (Quicktime format)
  Same animation as above with control of delta t using the slider
• Derivative of a curve that sweeps out a trefoil knot
  Animation to illustrate the speed at which a point traverses a curve
• Area in polar coordinates (Quicktime format)
  (courtesy of Professor Lou Talman, Metropolitan State College of Denver)