About this app
Imagine that you are measuring the displacements of two sinusoidal waves at the origin. Now plot the displacements against each other, using the red wave's displacement as the x-coordinate and the blue wave's displacement as the y-coordinate. The result is called a Lissajous curve. Lissajous curves appear naturally on oscilloscopes when one sinusoidal signal is plotted against another. By adjusting both waves' amplitudes, wavelengths, and phases, explore the beautiful curves you can create. As a challenge, can you also create a circle, an ellipse, and a straight line?