摘要
给出了第八届全国大学生数学竞赛一道决赛试题的三种解答,在此基础上给出了此类题型的一个推广结果并举例说明其应用,最后说明了参数曲面积分的定号问题.
This paper is concerned with three methods to solving a question of the eighth national mathematics competition for college students.Moreover,a result of such topic is obtained and relevant examples are given.Finally,assignment sign of surface integral with parameter surface is explained.
作者
雷冬霞
黄永忠
吴洁
LEI Dong-xia;HUANG Yong-zhong;WU Jie(School of Mathematics and Statistics,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《大学数学》
2018年第1期118-122,共5页
College Mathematics
基金
湖北省教学研究项目(2013052)
华中科技大学教学研究项目(2015066)
关键词
竞赛题
GAUSS公式
曲面积分定号
mathematical contest question
Gauss formula
assignment problem of surface integral
