Vector

Cross product

Actually the cross product is very very very limited in use, and as fairly often as the dot product.

So don’t waste time on this unless having certain use of it.

REMEMBER: A CROSS PRODUCT ONLY HAS USE IN 3-DIMENSIONS, AND ORDER MATTERS, AND GIVES YOU A…

Vectors multiplication

Vector multiplication is FUNDAMENTAL skill to solve Matrices multiplication.

Vector span

It’s extending the unit vector idea.

Vector & basic operations

What is a vector

Definition: vector is a MAGNITUDE with a DIRECTION

Change of basis

Changing basis of a vector, the vector’s length & direction remain the same, but the numbers represent the vector will change, since the meaning of the numbers have changed. 
Our goal is to calculate the New numbers in the vector in terms of the new basis.