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Add appendixD
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@@ -190,7 +190,7 @@ plt.show()
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用数学术语来说,对于一个由分量组成的向量 v = [v<sub>1</sub>, v<sub>2</sub>, ..., v<sub>n</sub>],L2 范数描述为:
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$$|v|_{2}=\sqrt{v_{1}^{2}+v_{2}^{2}+\ldots+v_{n}^{2}}$$
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$$\text|v|_{2}=\sqrt{v_{1}^{2}+v_{2}^{2}+\ldots+v_{n}^{2}}$$
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这种计算方法也适用于矩阵。例如,考虑以下梯度矩阵:
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