Vector
A vector is an element in a vector space. It is a quantity that can describe both the direction and magnitude of an element.
Matrices having a single row or column are referred to as vectors.
A vector is a list of numbers. There are (at least) two ways to interpret what this list of numbers mean: One way to think of the vector as being a point in a space. Then this list of numbers is a way of identifying that point in space, where each number represents the vector’s component that dimension. Another way to think of a vector is a magnitude and a direction