Hello,

I came across multiple occurrences of questions being quite “debatable” in the quizzes of DLS3, so I would like some clarification before submitting my test. In this image, the two possibilities rise question to me:

- In the first line, are we to assume that the product of 2 vectors is the dot product, as in
`uv=np.dot(u.T, v)`

? - In the second image, are we to suppose that parentheses around the second term
`y_j^i`

have been**forgotten**? Or were they**purposefully omitted**? There also lacks a parentheses at the end of the first line so it’s kind of impossible to know what we’re expected to answer here…

I really find the quizzes of DLS3 hard to get 100% because of multiple open interpretation of questions and answers…

Thanks for your help!

Élie