These observations prompted the development of the transverse Mercator projections in which a meridian is treated 'like an equator' of the projection so that we obtain an accurate map within a narrow distance of that meridian.
Ikăyădan win s armădăn efes n Isukni tan wi azunen Mercator daɣ eqqal meridian šund equator” n asukni i ad n ijru karti tolaɣăt daɣ ujjij n meridian wa