摘要
阐述了二元分式函数在坐标原点的极限问题.针对分子的不同情形,给出了两类二元分式函数的极限存在判别定理,得出了更一般化的判定定理.
The limit of fraction function with two variables in the origin of coordinates was described. According to different situations of numerator in a fraction, the criterion theorem on existence of two multivariate fractional function limits are given and the more general theorem is obtained.
出处
《上海工程技术大学学报》
CAS
2014年第4期367-369,共3页
Journal of Shanghai University of Engineering Science
关键词
二元分式函数
极限存在性
等价条件
fractional function with two variables
existence of limit
equivalent condition
