Sine Curve and Cosine Curve Animations
1. Changes in Amplitude (Animation) This animation displays changes in the graph of the sine curve according to changes in amplitude (all positive values).
2. Effects of changing the sign of "a". This applet shows the effects of changing the amplitude of a function.
3. Dual represenation of the sine curve. This animation shows the correspondence between the unit circle and the graph of the sine function.