• Area in Polar Coordinates
  • Area in polar coordinates (Quicktime format)
    courtesy of Professor Lou Talman, Metropolitan State College of Denver
  • Area between two polar curves (Quicktime format)
    once again, courtesy of Professor Lou Talman
• Surfaces
  • Regular old boring plane
    the simplest surface
  • Unit sphere (Quicktime format)
    courtesy of Professor Selwyn Hollis, Armstrong Atlantic State University
  • Elliptic cylinder
    an example of a generalized cylinder
  • Surface of revolution
    these surfaces are made up of circles
  • Torus knots
    Knots such as the trefoil knot can be "fattened up" to make
    interesting surfaces. There is a torus knot web site at
    Wolfram Research, Inc where you can manipulate these knots.
  • The hyperboloid of one sheet and its horizontal traces
    courtesy of Professor John Putz, Alma College
  • The hyperboloid of one sheet and its vertical traces
    courtesy of Professor John Putz, Alma College
  • Circular hyperboloid of one sheet
    all z-slices are circles
  • The hyperboloid of two sheets and its horizontal traces
    courtesy of Professor John Putz, Alma College
  • The hyperboloid of two sheets and its vertical traces
    courtesy of Professor John Putz, Alma College
  • The hyperbolic paraboloid and its horizontal traces
    courtesy of Professor John Putz, Alma College