After watching WelchLabs' Imaginary Numbers Are Real YouTube series, I wanted my students to be able to experiment with the awesome input-output video tool.

Welch created his video by stitching together several still images using OpenCV and Numpy. I went with javascript, and really wanted that live-video effect.

Turns out, still images are probably a better way to do things. There are some fascinating artifacts from using floating points which I don't have good ideas how to address, and the constant changes in a video make it hard to really focus in on how the function is transforming specific points.

But hey, it was fun, and still looks awesome!

student.js holds all the changeable pieces: set the width and height of the videos, adjust the corresponding domain/range for input/output planes; and most importantly, define a complex function to use.