Even if the corrector box has corrected the deviation to its full ability, a certain amount of deviation will again be found and this is listed in figures or in a curve.
Nokuba ibhokisi yezilungiso iye yalulungisa uphambuko kukuba nakho kwalo okuzeleyo, imali ethile yophambuko izakuphinda ifunyanwe kwaye le nto idweliswe kwiziqu okanye kwigophe.