| 插值法应用的实例分析 |
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| 引用本文： | 张洪波. 插值法应用的实例分析[J]. 华北科技学院学报, 2010, 7(3): 71-73 |
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| 作者姓名： | 张洪波 |
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| 作者单位： | 徐州建筑职业技术学院,江苏,徐州,221116 |
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| 摘 要： | 插值是数值分析领域的一个主要部分,插值理论能解决物理已知的表格数值中查找未知的值。结合插值理论建立插值函数进行插值计算,得到甘油在某一温度下的粘度。内插和外插在实际预测汽油价格中的比较,得到外插的稳定性、可信性和精度都不如内插。利用实例,通过分段线性插值得到解决画图中的Runge现象的方法。
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| 关 键 词： | 插值理论 内插 外插 Runge现象 |
A Case Analysis of Interpolation Application |
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| ZHANG Hongbo. A Case Analysis of Interpolation Application[J]. Journal of North China Institute of Science and Technology, 2010, 7(3): 71-73 |
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| Authors: | ZHANG Hongbo |
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| Affiliation: | ZHANG Hongbo(Office of Teaching Affairs,Xuzhou Institute of Architectural Technology,Xuzhou Jiangsu 221116) |
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| Abstract: | Interpolation is a major part of the numerical analysis field.Interpolation Theory can be used to find the unknown value in a physical form sheet.Based on Interpolation Theory,glycerol＇s viscosity can be known through Interpolation function calculation.Compared with interpolation,extrapolation is not as good as interpolation in Stability,credibility and accuracy.Examples are given to explain how piecewise linear interpolation method can be used to solved the Runge Phenomenon. |
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| Keywords: | Interpolation Theory interpolation extrapolation the Runge Phenomenon |
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