#rs/notes #rs/class/math163
- - -
- Vectors
	- have both magnitude and direction
	- Operations on vectors
		- scalar multiplication
			- multiply both components of vector by the same scalar
			- doensn't change the direction of the vector
		- addition
			- add the corresponding components together
			- same as putting initial point of one on terminal point of other
		- subtraction
			- v - w can be represented as v + (-w)
			- when initial points are the same, difference is the vector formed between the two terminal points
			- can also add the negative of one vector to the other
		- Component form
			- when a vectors initial point is at (0,0) it can be written in component form
			- <x, y>
		- Magnitude
			- Pythagoras