<Li> The log - polar coordinate system represents a point in the plane by the logarithm of the distance from the origin and an angle measured from a reference line intersecting the origin . </Li> <Li> Plücker coordinates are a way of representing lines in 3D Euclidean space using a six - tuple of numbers as homogeneous coordinates . </Li> <Li> Generalized coordinates are used in the Lagrangian treatment of mechanics . </Li> <Li> Canonical coordinates are used in the Hamiltonian treatment of mechanics . </Li>

Where do we use coordinates in real life