Lately, I am doing some image processing for an interesting project and then hit a road block of using Fourier transformation. I reckon i did not developed an intuition of these abstract concept back in school so that i can’t recall too much of it right now. Luckily, with the help of Internet, i can pick up things quickly without having to reading tons of pages again.
The first step is to understand Euler’s formula. This is best video on youtube i’ve seen so far explaining Euler’s formula and euler’s identity. It puts three important but irrelevant math constant into one formula in a simple, elegant and meaningful way. That’s why lots people believe it’s the most beautiful math formula in history.