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These Java applets allow students to explore three classic probability problems: (1) the Birthday Problem, (2) the Poker Problem, and (3) the Buffon Needle problem.
This site includes two applets, one for visualizing the approximation of a square wave by trigonometric series, and the other for hearing successive approximations to the displacement curve of a sound wave.
This applet supplements the authors' "Gutter Problem" material, but can be used to generally study properties and forms of quadratic functions, both analytically and graphically.
This applet explores the relationship between the cross-sectional area of a gutter (bent from a fixed-width sheet of metal) and the height of the gutter. Supporting material is given for topics ranging from quadratic modeling to max/min problems.
Students plot points and match formulas to data to explore families of functions.
Graph functions, zoom on points, and find points of intersection of multiple graphs.
This applet graphs polynomials of degree four or less, and it automatically chooses a viewing window that shows the significant features of the graph.
This site builds Bingo cards for a classroom of calculus students to make reviewing derivatives and integrals fun.
This utility uses the free Flash player plug-in resident in most browsers to allow the user to graph a surface of the form z = f(x,y) on a customized scale and dynamically rotate the three-dimensional picture.
This applet allows the user to test a graph for planarity by simply dragging the nodes around until the graph's edges don't cross. Fixed exercises and an interface for drawing your own graph are given.

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