| 具有四阶代数精度的四点数值微分公式及应用 |
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| 引用本文： | 董儒贞,孙晓梅.具有四阶代数精度的四点数值微分公式及应用[J].河南科学,2007,25(2):188-190. |
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| 作者姓名： | 董儒贞 孙晓梅 |
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| 作者单位： | 郑州经济管理干部学院,基础部,郑州,450052 |
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| 摘 要： | 从代数精度的概念出发,构造了等距节点的具有四阶代数精度的四点数值微分公式,并给出数值实例验证了其精度.
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| 关 键 词： | 可微函数 数值微分 代数精度 |
| 文章编号： | 1004-3918(2007)02-0188-03 |
| 修稿时间： | 2006-05-26 |
4-Order Precision Numeric Difference Formula with Four Nodes and Application |
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| DONG Ru-zhen,SUN Xiao-mei.4-Order Precision Numeric Difference Formula with Four Nodes and Application[J].Henan Science,2007,25(2):188-190. |
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| Authors: | DONG Ru-zhen SUN Xiao-mei |
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| Institution: | Basic Course Department Zhengzhou Economic Management Institute, Zhengzhou 450052, China |
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| Abstract: | In this paper,based on algebra analysis,we constructed the 4-order precision numeric difference formula with four equidistant nodes from the concept of algebra precision.The numeric test proves its high precision. |
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| Keywords: | difference function numeric difference algebra precision |
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