最小二乘法原理及其在实验曲线拟合中的应用分析  

The Principle of Least Squqre Method and Its Application to Fitting with Experimental Curve

作　　者：陈伟杰[1] 

机构地区：[1]集美大学诚毅学院,福建厦门361021

出　　处：《辽宁科技学院学报》2014年第4期33-34,37,共3页Journal of Liaoning Institute of Science and Technology

摘　　要：最小二乘法在曲线拟合中占有十分重要的位置,在一元一次直线方程中,最小二乘法的应用十分广泛,但在一元二次的直线方程中应用有限,本文从最小二乘法在直线中应用出发,引进一元二次方程进行论述,从物理学角度将所得物理模型进行论证,最终通过校验说明文章模型的合理性。The least square method is imoertant for curve fittint. In a straight line equation, the application of least square method is very extensive, but in linear equation with one variable and two orders, there are less application. Proceeding from the application of least square method to straight liens, the paper introduces a two order equation, then expounds the physical model from the aspect of physics. Finally, describes the rationality of model by checking.

关 键 词：最小二乘法 一元二次曲线 数据拟合 

分 类 号：O4-34[理学—物理]