> Math and software prefer lon, lat. I had always thought math prefers lat, lon ...well not lat (which is the altitude angle) but polar angle. But anyway, this

> Math and software prefer lon, lat. I had always thought math prefers lat, lon ...well not lat (which is the altitude angle) but polar angle. But anyway, this order: polar, azimuth. Turns out I have been getting all my spherical coordinates math from physics, which uses polar, azimuth. But math uses azimuth, polar. https://en.wikipedia.org/wiki/Spherical_coordinate_system https://en.wikipedia.org/wiki/Spherical_coordinate_system But then again: Where does math even use spherical coordinates that is not physics related?