摘要
介绍了利用2个新的积分不等式求解同一积分的近似值,详细阐述了该近似计算方法的优点及计算过程,并就4个区间的近似计算作了深入的说明.数值的计算表明,该方法可获得很高的精确度,并能确定误差大小,通过将积分区间细分,可进一步提高估算值的精确度,同时也计算机编程提供了数学模型.
The article introduces an integration solution by using two integrations.Advantages and calculation procedure of the new method of integration approximate are described in the paper.In the meantime the four regions of calculation details are formulated.Quantitative numerical calculation show that this way is of high precision.Also it can determine the integral error.The results show that the integral error is decreased by separating the region of integration into narrow.The accuracy of estimated value is improved.At the same time,some mathematical models for computer program are established.
出处
《沈阳工程学院学报（自然科学版）》
2011年第1期93-96,共4页
Journal of Shenyang Institute of Engineering:Natural Science
关键词
新的积分不等式
精度分析
数学模型
new integral inequality
accuracy analysis
mathematic model
