导出最小二乘解
用最小二乘解将线拟合于数据.
定义给定数据的垂直偏差的平方和.
| In[1]:= |  X |
| Out[1]= |  |
设定最小偏差的方程式.
| In[2]:= |  X |
| Out[2]= |  |
| In[3]:= |  X |
| Out[3]= |  |
生成数据.
| In[4]:= |  X |
求该数据的最小二乘解.
| In[5]:= |  X |
| Out[5]= |  |
绘制解和数据的图并验证是否匹配.
| In[6]:= |  X |
| Out[6]= |  |
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