3Blue1Brown, by Grant Sanderson, is some combination of math and entertainment, depending on your disposition. The goal is for explanations to be driven by animations and for difficult problems to be made simple with changes in perspective.

For more information, other projects, FAQs, and inquiries see the website: www.3blue1brown.com

34:36

Olympiad level counting: How many subsets of {1,…,2000} have a sum divisible by 5?

Shared 4 months ago

1.1M views

10:53

Oh, wait, actually the best Wordle opener is not “crane”…

Shared 7 months ago

4.8M views

40:06

Alice, Bob, and the average area of a cube's shadow

Shared 9 months ago

1.8M views

27:43

Beyond the Mandelbrot set, an intro to holomorphic dynamics

Shared 11 months ago

1M views

26:06

Newton’s method produces this fractal, why don’t we teach it in calculus classes?

Shared 11 months ago

2.1M views

13:13

A quick trick for computing eigenvalues | Chapter 15, Essence of linear algebra

Shared 1 year ago

698K views

27:07

How (and why) to raise e to the power of a matrix | DE6

Shared 1 year ago

1.7M views

21:14

The medical test paradox, and redesigning Bayes' rule

Shared 1 year ago

904K views

20:05

How to send a self-correcting message (Hamming codes)

Shared 2 years ago

1.6M views

21:58

Group theory, abstraction, and the 196,883-dimensional monster

Shared 2 years ago

2.3M views

1:08:20

Tips to be a better problem solver [Last live lecture] | Ep. 10 Lockdown live math

Shared 2 years ago

1.1M views

1:13:38

Intuition for i to the power i | Ep. 9 Lockdown live math

Shared 2 years ago

446K views

7:19

The DP-3T algorithm for contact tracing (via Nicky Case)

Shared 2 years ago

339K views

1:14:55

What makes the natural log "natural"? | Ep. 7 Lockdown live math

Shared 2 years ago

1.1M views

1:03:08

Imaginary interest rates | Ep. 5 Lockdown live math

Shared 2 years ago

671K views

51:16

What is Euler's formula actually saying? | Ep. 4 Lockdown live math

Shared 2 years ago

874K views

1:28:45

Complex number fundamentals | Ep. 3 Lockdown live math

Shared 2 years ago

1.3M views

1:13:18

Trigonometry fundamentals | Ep. 2 Lockdown live math

Shared 2 years ago

1.4M views

52:11

The simpler quadratic formula | Ep. 1 Lockdown live math

Shared 2 years ago

1.2M views

10:01

Why “probability of 0” does not mean “impossible” | Probabilities of probabilities, part 2

Shared 2 years ago

2.1M views

12:34

Binomial distributions | Probabilities of probabilities, part 1

Shared 2 years ago

1.7M views

22:30

Why do prime numbers make these spirals? | Dirichlet’s theorem, pi approximations, and more

Shared 2 years ago

3.9M views

16:03

The unexpectedly hard windmill question (2011 IMO, Q2)

Shared 3 years ago

4.2M views

24:47

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

Shared 3 years ago

14M views

12:12

Cramer's rule, explained geometrically | Chapter 12, Essence of linear algebra

Shared 3 years ago

860K views

14:41

How colliding blocks act like a beam of light...to compute pi.

Shared 3 years ago

930K views

15:51

But why is a sphere's surface area four times its shadow?

Shared 3 years ago

6M views

19:22

Using topology to solve a counting riddle | The Borsuk-Ulam theorem and stolen necklaces

Shared 3 years ago

674K views

31:51

Visualizing quaternions (4d numbers) with stereographic projection

Shared 4 years ago

3.4M views

15:42

Divergence and curl: The language of Maxwell's equations, fluid flow, and more

Shared 4 years ago

3M views

14:26

The other way to visualize derivatives | Chapter 12, Essence of calculus

Shared 4 years ago

3.2M views