The bottom left graphing window shows a graph of a cos(ωt) in yellow and a graph of b sin(ωt) in cyan. The top left window shows a graph of the sum of these two functions in green, and a graph of A cos(ωt - φ) in red.

Grab the [a], [b], [A], [φ], and [ω] sliders to set these parameters.

Control the display at right by means of the checkboxes below it, labeled [a,b] and [A,φ].

© 2001 H. Hohn and H. Miller