简体中文
EnglishWhat Is 3Blue1Brown?
Updated
3Blue1Brown is a mathematics education project built around a distinct visual approach to explaining math. Its website, 3blue1brown.com, organizes its videos and lessons by topic — including linear algebra, calculus, neural networks, topology, and more — and offers a mailing list plus a Patreon supporter program. It's best suited to learners who want intuition and geometric understanding rather than a formal course sequence, and to anyone curious about topics like neural networks or differential equations who wants a visual entry point.
What the site actually offers
The homepage is organized into a few main areas:
- Theater — the video library, where the project's animated lessons live.
- Lessons — topic-based groupings of the material.
- Patreon — the supporter program.
- Follow — links to the project's presence on other platforms.
The topic list on the site is broad and spans both pure and applied math:
| Category | Examples listed on the site |
|---|---|
| Core math | Linear algebra, calculus, differential equations, analysis |
| Applied / computational | Neural networks, computer science, physics |
| Pure / recreational | Topology, geometry, fractals, probability, group theory, number theory |
| Other | Puzzles, "Why Pi", Lockdown Math, guest videos, talks |
There are also sections for Best Of and New Video (Early Access), and a 3b1b Talent page described as "a virtual career fair" that partners with organizations looking to hire technically curious viewers.
How the lessons are meant to be used
The site frames its lessons as comparable in value to a textbook or a course — that's the explicit framing behind the Patreon ask. In practice this means the videos are designed to build intuition and visual understanding of a concept, not to replace problem sets or a structured syllabus. A reasonable way to use them:
- Pick a topic from the Lessons list that matches what you're studying or curious about.
- Watch the corresponding videos in the Theater.
- Use the mailing list if you want to be notified about new releases.
The Patreon supporter program
The site states that if the lessons bring you value comparable to a textbook or a course, you can consider joining as a supporter. According to the site, supporters get:
- Early access to new videos
- The ability to provide feedback that helps refine videos' final form
- A store discount
- Their name in a video
The site does not list specific prices or tiers in the material available here, so check the Patreon page directly for current amounts and terms.
Where to follow and find the project
Beyond the website, the project maintains a presence on Instagram, X, BlueSky, TikTok, Reddit, a second channel, Facebook, Spotify, GitHub, Bilibili, and RSS, plus a mailing list. If you prefer one platform over another, the Follow section is the place to find the matching link.
Who it's for
- Self-directed learners who want visual, intuition-first explanations of math topics.
- Students encountering linear algebra, calculus, or differential equations who want a second perspective alongside their course.
- People interested in neural networks who want the underlying math explained visually rather than only through code.
- Curious viewers who enjoy puzzles, geometry, or number theory content without a formal course commitment.
If you need graded exercises, a fixed curriculum, or credentials, this isn't that — it's a library of visual explanations you pair with your own study plan.