n.不存在的事；無；不存在的東西

The uncertain relationship between the double limit ond the quadratic limit is explained and the determination methods to the nonexistence of the odd function's limit are given. 摘要本文闡明二重極限與二次極限的不確定關(guān)系，給出齊次函數(shù)的極限不存在的判定方法。

The uncertain relationship between the double limit ond the quadratic limit is explained and the determination methods to the nonexistence of the odd function's limit are given. 摘要本文闡明二重極限與二次極限的不確定關(guān)系，給出齊次函數(shù)的極限不存在的判定方法。