In simple terms, magnitude is referred to a term that is related to any mathematical object. This helps to express size of mathematical quantity or object. The magnitude of a vector helps to compare an object with the other and decide the size of object than any other quantities of same type.

Through magnitude of vector it is possible to define length. Vector magnitude is defined as distance that happens between its initial point which is also said as vector tail and terminal point or vector head.

A Euclidean vector is said to be a vector that is represented in Euclidean space. The position of vector V⃗ is defined in Euclidean space of n dimension. It is further represented by ordered set of n real number.

V⃗= (v_{1}, v_{2},…..v_{n})