Week 2 assignment for linear algebra

hey fellows how are you?
so i had an issue with this assignment , i basically answer all the assignemt questions , and i write in the jupyter notebook and i submitthem , then i recieve no grade and i got zero , while all of my answers was in the right format that assignment requested and i know those are the right answers , so whats is the problem ? anybody has the same problem?

I think you should share the output you get from the grader so that the mentors can help you out.

i don’t know how to do that can you help me , Thanks alot.

You can just do a screenshot on the output (not the code)

{moderator edit: code removed}

The error in your first image is because you opened the notebook but didn’t run the first cell, which is where the numpy package is imported and defined as ‘np’.

You have to run all the cells every time you open a notebook.

In your second image, I recommend you not use the modify-in-place operators like *= and +=.

It would also help if you post whatever error message or grader feedback you get.

Note that posting your code like that is not allowed by the Code of Conduct.