勘误

[644731871zzz]

代码LA_01_08_05中
L_inf_a = np.linalg.norm(a, ord=np.inf) # 默认
L2_a

L2_a 需改为 L_inf_a

代码LA_02_02_01中
最后一幅图的代码参数第一个A[:,[0]].T, 需改为 A[:,[-1]].T,
sns.heatmap(A[:,[0]].T, cmap = 'RdYlBu_r', square = True,
cbar = False, annot = True, vmin = 0, vmax = 9,
linecolor = 'w', linewidths = 0.25)
改为
sns.heatmap(A[:,[-1]].T, cmap = 'RdYlBu_r', square = True,
cbar = False, annot = True, vmin = 0, vmax = 9,
linecolor = 'w', linewidths = 0.25)