摘要
阐述了用数值分析的方法计算几个工程上常见的重要积分,在每小区间上用简单函数代替复杂函数,得到该积分的近似值,使其产生的截断误差小于ε,对不能解析求解的积分问题提供了新的方法.
Numerical methods for some important integration are illustrated.In every small interval,the approximate values of the integration are obtained by replacing the complex function with simple function,so the truncation error is less than ε.It provides a new method for the problems that the integration can't be solved with analytical method.
出处
《吉林化工学院学报》
CAS
2004年第2期95-96,共2页
Journal of Jilin Institute of Chemical Technology
关键词
数值积分
近似计算
截断误差
numerical integration
approximate integration
truncation error
