计算余弦的夹角

A = np.array([1,3])
B = np.array([3,1])
A.dot(B)/(np.linalg.norm(A)*np.linalg.norm(B))
np.arccos(0.5999999999999999)
np.rad2deg(0.9272952180016124)

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转载自blog.csdn.net/weixin_44274975/article/details/88550109