Change the settings to generate different waves. Use Space to redraw the wave if you have "Refresh Automatically" set to 0. Use R to reset the settings to the original settings. RUN IN TURBO MODE!
Determined to learn how Sine works I decided to try it out in Scratch. I started with a simple wave. I then made it 3D. Then created a Width setting etc. After a lot of tweaking and adding more settings I felt it was worth sharing.