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Archimedes' computation of circle area and his use of the Law of the Lever to compute volumes of cones, cylinders, spheres, and paraboloids in his Method, explored using interactive Java ap

Essay giving history of the number $e$ and logarithms, with focus on why we use "$e$" to represent the base of the natural logarithm.

Essay giving very brief biography of l'Hospital, the history of his and Johann Bernoulli's rule, and a slightly modernized diagram for and version of the proof he and Bernoulli gave.
Timeline of contributors to formulation of the Calculus with biographies: Click on the historical figure's image to see his biography and two links to further online information.

This maplet runs from a server via MapleNet and does not require the user to have Maple installed.

This applet is designed to build the student's visual intuition about the line tangent to a curve at a point being the limit of the secant lines through that point.
This animation shows how a secant line approximates the tangent line at a fixed point when its other intersection with the curve is forced toward the fixed one. This is a Quick Time movie.
This animation shows how to use the slope of a curve to plot the derivative for that curve.
This GeoGebra applet plots the first and second derivative on the same graph. The tangent line to the graph of a function at a point is drawn.