Function is the main research object of mathematics and parity is an important characteristic of function.By stud-ying the parity,students can strengthen their understanding of the concept and property of function,and cultivate mathematical thinking and innovation ability.Complex function theory,as a compulsory mathematical basic course for undergraduate students of science and engineering,has been widely used in various fields of natural science.The existing literature mainly focus on the re-search of real variable function and there is little discussion on the parity of complex variable function.This paper uses the parity of function to study the problems of integration,derivation and residue in complex variable function systematically,so as to guide col-lege mathematical education,improve teachers'teaching methods,promote students'thinking level and computing ability,and re-flect the beauty of mathematics.
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