Introduction to vectors, Part 1

An introduction to magnitude, direction, vector addition, and scalar multiplication of vectors in the plane. A conceptual discussion emphasizing the geometry and basic algebraic properties of vector addition and scalar multiplication.

[yuxinxie]

For 0+u, should it be 0/arrow +u or 0+u? Because what is used here is the vector addition, but 0+u is a real number plus a vector. Thank you

[stevedl]

Are two equal vectors regarded as identical ? I don`t think they can be since, it seems to me, that a vector which starts at ( 0, 0 ) and ends at ( 4, 4 ) is equal to a vector that starts at ( 1, 0) and ends at ( 5, 4 ). But each obviously starts in a different position. Is there such a thing as an identical vector ? Does this question make sense ?

[countingpebbles]

Hi, awesome video, I am really enjoying them. Two questions

1) shouldn't the vector in quadrant four at 4:26 have the component notation of (3, -2)

2) shouldn't our solution to u + (-u) at --18:07-- be 0-> (zero vector notation) since a zero vector is not the same as the real number 0

Thanks