This is my first blog post of my Blogging Series "Brushing Up Linear Algebra" Most of us try to learn Mathematics and its applications but end up just learning the numerical computations.Mathematics is more than numerical computations.The Magic of Mathematics begins when we understand the geometrical interpretations of the numerical computations.Linear Algebra is not just about Matrices,Determinants and Vectors its about Understanding. This post is about Vectors. Almost each of us would have been come across vectors whether we study Mathematics,Physics or Computer Science. Lets try to understand Vectors from each of the perspectives-Mathematics,Physics and Computer Science and build an intuition about Vectors. Physics:Vectors are arrows pointing in space.What defines a vector is its length(magnitude) and direction.As shown in image the tail can also be called has Initial point and the head as Terminal point Computer Science: Vectors are ordered list of numbers or we can say another name for list.You would be more familiar with this definition if you have studied R. Lets us say we are defining a car on the basis of its kmph and its Price.Then we can represent the car using a vector say [35kmph, Rs10,00,000] .