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xinetzone authored and astonzhang committed Feb 17, 2021
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## 矩阵-矩阵乘法

如果你已经掌握了点积和矩阵-向量积的知识,那么 *矩阵-矩阵乘法*(matrix-matrix multiplication) 应该很简单。
如果你已经掌握了点积和矩阵-向量积的知识,那么 **矩阵-矩阵乘法**(matrix-matrix multiplication) 应该很简单。

假设我们有两个矩阵$\mathbf{A} \in \mathbb{R}^{n \times k}$和$\mathbf{B} \in \mathbb{R}^{k \times m}$:

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tf.matmul(A, B)
```

矩阵矩阵乘法可以简单地称为 * 矩阵乘法 *,不应与 Hadamard 产品混淆
矩阵矩阵乘法可以简单地称为 **矩阵乘法**,不应与 哈达玛积 混淆

## 范数
:label:`subsec_lin-algebra-norms`
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