Example image of eyePlorer eyePlorer map for 'Spherical coordinate system': Azimuth Coordinate system Dimension Mathematics Projection (linear algebra) Zenith Astronomy Geography Sea level Euclidean distance International Organization for Standardization ISO 31-11 United States Right-hand rule Cylindrical coordinate system Polar coordinate system Degree (angle) Radian Interval (mathematics) Geographic coordinate system Latitude Longitude Cartesian coordinate system Rotation matrix Multiple integral Helmholtz equation Laplace's equation Partial differential equation Separation of variables Spherical harmonics Loudspeaker Atan2 Equator Celestial equator Ecliptic Galactic coordinate system Galaxy Sun World Geodetic System Line element Unit vector Del Del in cylindrical and spherical coordinates List of canonical coordinate transformations Vector fields in cylindrical and spherical coordinates Colatitude Fundamental plane (spherical coordinates) Multipole expansion Solid harmonics Spheroidal wave function