Hi in the optional video explaining backpropagation of C1 of deep learning spec , when we use the whole training set in the X matrix , we should consider the overall cost formula that includes the term 1/m but when professor calculate dL/dZ[2] = A[2]- y , we dont include 1/m normaly dL/dZ[2] = 1/…

Optional video explaining backpropagation of C1 : dL/dZ[2] = A[2]- y?

saifkhanengr August 17, 2023, 3:08pm 2

Because then we added that part to dW and db. Chain rule. Please read this.

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