二元函数极限的计算方法

Methods of Requesting the Limit of Binary Function

,由于变量个数的增加,二元函数极限的求解比一元函数复杂得多,但二元函数极限的运算法则与一元函数是一致的,因此可将一元函数的计算方法推广至二元函数.

The limit of binary function comes from the limit of one variable function. They have the same algorithm, but the limit of binary function is more complex because of one more variable. This paper gets the methods of requesting the limit of binary function on the basis of the limit of one variable function and gives examples.