积分学中的一类对称性问题

A Kind of Symmetry in Intergral Calculus

讨论了积分学中的一类对称性问题，从一重积分到二重积分再推广到n重积分；介绍了对称性内在的几何意义，并结合数学竞赛题目作了相应的分析。

The paper deals with a kind of symmetry in intergral calculus from definite intergration and double intergration to multiple intergration .Besides,it analyzes the geometry meaning of symmetry according to maths contest.