Since latitude is defined with respect to an ellipsoid, the position of a given point is different on each ellipsoid: one cannot exactly specify the latitude and longitude of a geographical feature without specifying the ellipsoid used.
Alwaq wa id tahrike tila almaɣna daɣ semɣar n ellipsoid, edag n titbaqqet iyyan izlay fal ellipsoid fuk: war ti illa i addoben ad izli tahrike d tišijrit n samal n jorgafia daɣ war imel ellipsoid war s exdam