I’m stuck and don’t know how to progress. For exercise 5 I am calculating dw and db correctly, but the cost is not being calculating correctly. Without sharing code I am using the np.dot and np.sum functions and I have carefully looked the formula and made sure everything is right. How do I get help. Can someone look at the code and tell me where I am going wrong?
Thanks in advance
If you use np.dot, you shouldn’t need the np.sum. Well, unless you did the transposes in the wrong way. Please have a look at this thread and see if it is relevant to your issue.
Here’s another thread which starts from the cost formula and discusses several ways to code it.
BTW the mentors can’t directly look at anyone’s code, but there are ways we can share code privately if that is necessary. Let’s see if the thread linked above sheds any light. If not, we’ll go to the next step.
Thanks, I got it to work with straight mult and using np.sum, I’ll go back and see if I can get working np.dot and no np.sum