Jez Swanson Fourier transforms are a tool used in a whole bunch of different things. This is an explanation of what a Fourier transform does, and some different ways it can be useful. And how you can make pretty things with it, like this thing: I'm going to explain how that animation works, and along the way explain Fourier transforms! By the end you should have a good idea about What a Fourier tr
![An Interactive Introduction to Fourier Transforms](https://cdn-ak-scissors.b.st-hatena.com/image/square/ea1744a69c834602c691e6d72f7846a3ef2346dc/height=288;version=1;width=512/http%3A%2F%2Fwww.jezzamon.com%2Ffourier%2Fpreview.png)