This package is a simple and efficient implementation of several common coordinate
systems with Unitful dimensions. These systems, as defined by the ISO 80000-2:2019
standards, include:
- Two-Dimensional 
AbstractCoordinate{2}:- Rectangular 
CoordinateRectangular(x, y) - Polar 
CoordinatePolar(r,$\varphi$ ) 
 - Rectangular 
 - Three-Dimensional 
AbstractCoordinate{3}:- Cartesian 
CoordinateCartesian(x, y, z) - Cylindrical 
CoordinateCylindrical($\rho$ ,$\varphi$ , z) - Spherical 
CoordinateSpherical(r,$\theta$ ,$\varphi$ ) 
 - Cartesian 
 
Typical usage looks like:
using Unitful, UnitfulCoordinateSystems
coord1 = CoordinateCartesian(1.0u"m", 2.0u"m", 3.0u"m")
coord2 = CoordinateSpherical(1.0u"m", 45.0u"°", 30.0u"°")