# Vectors, what even are they? | Essence of linear algebra, chapter 1

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3Blue1Brown

Shared August 5, 2016

Kicking off the linear algebra lessons, let's make sure we're all on the same page about how specifically to think about vectors in this context.

Typo correction: At 6:52, the screen shows
[x1, y1] + [x2, y2] = [x1+y1, x2+y2].
Of course, this should actually be
[x1, y1] + [x2, y2] = [x1+x2, y1+y2].

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