南昌工程学院学报
南昌工程學院學報
남창공정학원학보
JOURNAL OF NANCHANG INSTITUTE OF TECHNOLOGY
2012年
4期
24-28
,共5页
差分进化%不等距点分割%数值积分%进化策略%振荡函数
差分進化%不等距點分割%數值積分%進化策略%振盪函數
차분진화%불등거점분할%수치적분%진화책략%진탕함수
DE algorithm%unequal point' s segmentation%numerical integration%evolution strategies%oscil-latory function
提出了一种求解任意函数的数值积分方法,将积分区域进行不等距点分割,结合改进的差分进化算法进行优化.该方法不仅能计算通常意义下的任何定积分,而且能计算奇异函数积分和振荡函数的积分.仿真结果分析表明,该方法比现有的方法计算精度高,能快速有效地获得任意函数的数值积分值.
提齣瞭一種求解任意函數的數值積分方法,將積分區域進行不等距點分割,結閤改進的差分進化算法進行優化.該方法不僅能計算通常意義下的任何定積分,而且能計算奇異函數積分和振盪函數的積分.倣真結果分析錶明,該方法比現有的方法計算精度高,能快速有效地穫得任意函數的數值積分值.
제출료일충구해임의함수적수치적분방법,장적분구역진행불등거점분할,결합개진적차분진화산법진행우화.해방법불부능계산통상의의하적임하정적분,이차능계산기이함수적분화진탕함수적적분.방진결과분석표명,해방법비현유적방법계산정도고,능쾌속유효지획득임의함수적수치적분치.
A new method is presented to calculate numerical integration based on differential evolution (DE) algorithm. The unequal point's segmentation is presented in the integration interval, and DE of self-adaptive mutation is used to optimize the integration interval. The algorithm can not only used to com- pute usual definite integral for any functions, but also compute singular integral and oscillatory integral. Several experimental results show that this method is more accurate in computation than the existing meth- od and it can effectively obtain the arbitrary functions numerical integration.