| 特殊定积分计算技巧 |
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| 引用本文： | 向修栋,杨树林.特殊定积分计算技巧[J].高师理科学刊,2014(6):10-13. |
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| 作者姓名： | 向修栋 杨树林 |
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| 作者单位： | 1. 中国石油大学 理学院,山东 东营,257062
2. 中国石油大学 胜利学院,山东 东营,257097 |
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| 摘 要： | 通过变量替换,给出定积分在不变限和取半区间时定积分计算公式,特别地,给出了半区间上三角函数的定积分公式,并以实例推广到瑕积分上,简化了一些定积分和瑕积分计算过程.
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| 关 键 词： | 定积分 瑕积分 变量替换 |
Skills in special definite intergral calculation |
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| XIANG Xiu-dong,YANG Shu-lin.Skills in special definite intergral calculation[J].Journal of Science of Teachers＇College and University,2014(6):10-13. |
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| Authors: | XIANG Xiu-dong YANG Shu-lin |
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| Institution: | XIANG Xiu-dong, YANG Shu-lin ( 1. School of Science, China University of Petroleum, Dongying 257062, China; 2. School of Shengli, China University o f Petroleum, Dongying 257097, China ) |
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| Abstract: | Gave the definite integral formulas of the invariant limit and half-interval by variable substitution, particularly the half-interval integral formulas of trigonometric functions. With examples, showed the application skills of using the formulas to count simply some definite integrals and improper integrals by expanding application. |
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| Keywords: | definite intergral improper intergral variable substitution |
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