摘要
在复变函数中,极点和级数的判断既是重点也是难点,对形如f(z)=P(z)/Q(z)的函数,给出了其极点及级数的判定,并加以举例说明.
In complex function theory,determining the polar point and the order of polar point is important and difficult.Provided a method of how to determine the order of the polar point for the complex function as f（z）=P（z）/Q（z）,and gave some examples.
出处
《高师理科学刊》
2012年第3期23-25,共3页
Journal of Science of Teachers＇College and University
关键词
极点
孤立奇点
留数
polar point
isolated singular point
residue
