I think there is a typo in the lecture note.
https://community.deeplearning.ai/uploads/short-url/89tSibHAcuXwW3ZFBpsnt6Yyquh.pdf
To calculate dW[L], we should use
dW[L] = 1/m * dZ[L] A[L-1] transpose
Thank you @Ji_Huang, I will discuss about this with the course team.
Cheers,
Raymond
Hello @Ji_Huang,
I just checked the lecture note post again and realized that the notes are not being maintained. Let me quote:
Besides, you might also want to take a look at this reading item for there are also other corrections made on those equations.
Cheers,
Raymond
Hi @rmwkwok , thank you for your feedback. That makes sense : )
You are welcome, @Ji_Huang!