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请教network.py #43

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@caimeigao123

我用定义[4,3,2]的网络跟踪发现
def backprop(self, x, y):
z = np.dot(w, activation)+b
这里打印出来的z是一个矩阵,不是一个vector,不知道什么原因。
能否指点一下,谢谢!

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