Vector Basics

https://pythonprogramming.net/vector-basics-machine-learning-tutorial/

Covering the basics of vectors:

• Origin (assume 0,0)
• Direction – heading (x,y)
• Magnitude – length of line

Magnitude = square root of the sum of the squares of the other 2 sides (Pythagoras)

Dot product

(1,3) x (4,2) = (1×4)+(3×2) = 6