I have two 3d arrays A and B with shape (N, 2, 2) that I would like to multiply element-wise according to the N-axis with a matrix product on each of the 2x2 matrix. With a loop implementation, it looks likeI have two 3d arrays A and B with shape (N, 2,
阅读背景：
三维数组的Numpy elementwise产品。
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