多元函数极限的求法

摘要

多元函数的极限在高等数学中是很重要的,但是因为多元函数的自变量比较多,判断或者求多元函数的极限就不同于一元函数。因此,可以把多元函数转换成一元函数的极限去求多元函数的极限,或者用洛必达法则去求某些多元函数的极限。%The limit of function of many variables is very important in the higher mathematics,but because the independent variable is more,the method of judgment and request the limit of many variable function is different from one variable function.Therefore,we can translating the method of judgment and request the limit of function of many variables into the method of judgment and request the limit of one variable function,or we can use L＇Hospital＇s Rule to solve the limit of function of many variables.