Umzekelo, ukuba uJane ufuna ukwazi i-position kaSally. USally angamnika i-vector uJane apho ayakubona khona i-position. Ukuba uJane noSally basemhlabeni, kukho ii-dimensions ezintathu. Ngoko ke, uSally unika uJane uludwe lwamanani amathathu ukuze ambonise i-position. Laa manani mathathu akwi-vector uSally awanika uJane kusenokweneka okokuba::