You can observe the transmission and reflection of a wave pulse going from a specified medium on the left to another on the right. You can specify the shape of the wave
pulse, its dimensions (left end and right end refer to the coordinates of the end points of the wave pulse), and speed. You can also specify
the indices of refraction of the two media (defaults to n = 1). Medium 1 pertains to the area to the left of the origin, and medium 2 to the area to the right of the origin.
The top graph will show the two separate waves, while the bottom one will show their superposition.