【正文】
ore flexible. The mon integral method are the substitution of variables and the integration by parts. These methods are effective in the solution general question, but appear regarding the plex calculus putation and the proof question somewhat has more desire than energy. If we carefully observe the subject a little, usually we will find regional integration or product function has a symmetry. If we applied the symmetry skillfully to solve such problems, this not only simplifies the calculation process but also save puting time.More flexible use of problemsolving approach symmetry is also important, Then the paper will be integral, double integral, curve and surface integrals four points in a bid to further investigate the symmetry in the integral calculation. Finally, we solve problems by analyzing the symmetry of the conditions of use and advantages, summed up the nature of problem solving application related to the attention of what.Key wordsdefinite integral, heavy integral, curvilinear integral, surface integral, symmetry, parity 目 錄緒論…………………………………………………………………………………1 研究背景………………………………………………………………………1 研究意義………………………………………………………………………1 研究的思路及結(jié)構(gòu)的安排……………………………………………………2對(duì)稱(chēng)性在定積分計(jì)算中