But what is a Fourier series? From heat flow to drawing with circles | DE4

Why HN readers recommended it

Recommended as the visual explanation that makes Fourier series and transforms click, even for laypeople.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

3Blue1Brown

Topic

fourier series

Format

explainer

Level

intro

HN recommenders in dataset

4

HN mentions in dataset

8

Recommendation years in dataset

2020–2025

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• I wouldn’t call this 3blue1brown video a reference, but until I watched this (coming from an audio background), I didn’t quite grasp that a continuous stencil of any complex silhouette could be described in terms of a set of contributing vectors. Helped click that there …

• 3B1B is incredible. I loved his video ( [VIDEO] ) using Fourier series to make epicycle animations. I worked through the details to make my own: [LINK]

• > It remains a badge of honor for many who like to describe themselves as highly cultured or artistic to describe themselves as mathematically challenged, or to say that their brains aren’t wired for mathematics. Because many of those they hold in high esteem have …