【摘要】 物理量之间的函数关系在实际研究工作有很重要的作用。本文首先介绍了最小二乘原理。其次介绍了用Matlab实现曲线拟合以得到函数关系的方法和步骤。最后举例比较了采用不同方法进行拟合得到的结果。更多还原

【Abstract】 Function relation between physics variables is important in actual research. This paper introduces least squares principle firstly,then introduces the methods and approaches of actualizing Least-squares curve-fitting based on Matlab to gained function relation,finally this paper compares results which are received by different fitting ways through an example.更多还原