| 几种求积公式计算精确度的比较 |
| |
| 引用本文： | 刘绪军.几种求积公式计算精确度的比较[J].南宁职业技术学院学报,2009,14(6):95-97. |
| |
| 作者姓名： | 刘绪军 |
| |
| 作者单位： | 苏州工业职业技术学院,江苏,苏州,215104 |
| |
| 摘 要： | 一般求积公式计算精确度均采用梯形面积来近似的代替于曲边梯形的面积,但这样会难以选择恰当的计算公式。通过对复化梯形公式、变步长的梯形法则和龙贝格公式计算精确度的比较,得出一些具体的选择方法,可以为提高计算精确度减少复杂的运算。
|
| 关 键 词： | 复化梯形公式 变步长的梯形法则 龙贝格公式 精确度 |
Comparison of Calculation Accuracy of Some Quadrature Formulas |
| |
| LIU Xu-jun.Comparison of Calculation Accuracy of Some Quadrature Formulas[J].Journal of Nanning Polytechnic,2009,14(6):95-97. |
| |
| Authors: | LIU Xu-jun |
| |
| Abstract: | Calculation accuracy of quadrature formulas is generally achieved by replacing the area of trapezoid with curved edge with the area of a trapezoid,which often causes trouble in selecting an appropriate computing formula.Based on the comparison of calculation accuracy between compound trapezoid formula,variable step-size trapezoid formula and Romberg formula,the article comes up with some specific selection methods,which contribute to high calculation accuracy and a lower computation complexity. |
| |
| Keywords: | compound trapezoid formula variable step-size trapezoid formula Romberg formula accuracy |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
