Convolution_model_Step_by_Step_v1 There seems to be missing equations for backward pass. Code says refer to equations above but backward pass starts abruptly without any introduction.

Missing topics from table of contents:

```
5 - Backpropagation in Convolutional Neural Networks (OPTIONAL / UNGRADED)
5.1 - Convolutional Layer Backward Pass
5.1.1 - Computing dA
5.1.2 - Computing dW
5.1.3 - Computing db
```

Thanks in advance.

They don’t cover the intuition behind the back prop. But if you want to dive deep, you can by using Google/YouTube or books/articles.

Thank you for quick reply. I meant assignment itself has following comment:

```
# Update gradients for the window and the filter's parameters using the code formulas given above
```

But there are no formulas. Also name of file is `v1`

. Seems like formulas and section was removed accidentally from this version.

Updated thread above about missing topics:

5 - Backpropagation in Convolutional Neural Networks (OPTIONAL / UNGRADED)

But I can see this in my notebook, v1.1. Maybe you deleted this mistakenly. Here is the guide on how to get a fresh copy of your assignment. It will undo all your code, so, it’s better to submit your graded code first.

Thank you. Dunno when I deleted them.

Best,

Rahul