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B1 Intermediate English 5:09 Educational

Essence of linear algebra preview

3Blue1Brown · 2,678,420 views · Added 3 months ago

Learning Stats

B1

CEFR Level

5/10

Difficulty

Subtitles (80 segments)

00:11

Hey everyone!

00:13

So I'm pretty excited about the next sequence of videos that I'm doing.

00:16

They'll be about linear algebra, which, as a lot of you know,

00:19

is one of those subjects that's required knowledge for just about any technical

00:23

discipline, but it's also, I've noticed, generally poorly understood by students

00:27

taking it for the first time.

00:30

A student might go through a class and learn how to compute lots of things,

00:34

like matrix multiplication, or the determinant, or cross products,

00:37

which use the determinant, or eigenvalues, but they might come out without really

00:42

understanding why matrix multiplication is defined the way that it is,

00:46

why the cross product has anything to do with the determinant,

00:49

or what an eigenvalue really represents.

00:53

Oftentimes, students end up well practiced in the numerical operations of matrices,

00:57

but are only vaguely aware of the geometric intuitions underlying it all.

01:01

But there's a fundamental difference between understanding linear

01:04

algebra on a numeric level and understanding it on a geometric level.

Full subtitles available in the video player

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