Not to mention longitude and latitude are most often used for spherical coordinate systems, as angles, where x, y, z are usually meant for Cartesian coordinates

Not to mention longitude and latitude are most often used for spherical coordinate systems, as angles, where x, y, z are usually meant for Cartesian coordinates, as distances, in a projected representation. As a French nitpick, the "sideways axis" is actually not going sideways, but pointing right at us :)