[Week 1] Assignment 1 Final exercise (Ex. 8) lstm_backward function, partially wrong expected output

Course Q&A Deep Learning Specialization Sequence Models
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I got wrong values at the first 3 expected outputs, but still correct for the the rest of outputs. I have checked my code thoroughly but cannot find any error yet. Basically, my code for this exercise is nearly the same with the previous rnn_backward function. Btw, my code for the lstm_cell_backward is correct.

Is this possible if any mentor can check if my code is wrong?

2

Hi zuiiuz,

Sorry for the late response. Is this still an issue or did you solve it already?

Best,

Rosa

3

I have a similar problem, first 3 outputs are wrong then all rest are correct.
It seems we only have dWf available but equations 19 and 21 suggests to use Wf

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specifically da_prev and dxt are producing the wrong results (first 2)

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Any suggestion on solving this issue? @uchejustin

6

I think the forget gate also producing the wrong result?

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I also got the same problem, can it be fixed?