deeplearning.ai-lecture1-building deep neural network-summary

 先上一张summary map 1. L层神经网络参数初始化: 返回各层参数W(1)…W(l-1) def initialize_parameters_deep(layer_dims):    for l in range(1,L):         parameters['W'+str(l)]=np.random.randn(layer_dims[l],layer_dims[l-1])*0.0
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