Press space to choose a different type of wave. Press "h" to show/hide variables. Move the sliders. Acknowledge that this is 1s1s and applaud me.
Credit to Wikipedia. Finally, I have figured out how to plot Sine, Cosine, and Tangent!! Muhahahahaha!!! I also added a couple other functions. It now includes floor, ceiling, square root, and absolute value. (Some of them work best with a low amplitude)