This sketch, titled Rotation, consists of 150 particles whose x and y values are controlled by a r*cos(θ)*sin(γ) equation.

The user can adjust the sliders to change the theta(θ) or gamma(γ) of the equation and alter the trajectory of the particles. Additionally, the "Paint" button can be used to toggle the path of the particles on or off.

The color, speed, size, and angle of each particle are randomized every time the "Reset" button is pressed.