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jetbrains-academy / Python-Libraries-NumPy

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Array Indexing and Slicing / Indexing Basics #53

Closed edutools-service closed 2 years ago

edutools-service commented 2 years ago

1.The solution proposed by JB for the variable a = x[4, 3] assumes only positive indices and does not allow negative indices a = x[4, -1] , although the latter is more convenient in such a case. Both solutions are equal and admissible. Correct pls if possible.

  1. The second task requires extracting "every second element in every second row". According to JB's solution, the string x[0] is the "second string", although formally 0 != 2. In my opinion, it is better to specify the task by replacing the words "second" with "even" . Thanks.
sofiiako commented 2 years ago

Hi! Thank you for your feedback! 1) The solution x[4, -1] is accepted as correct by the test. I agree though, that it is a more obvious way to solve the task, so I changed the proposed solution. 2) I believe the phrase "every second item" has a very specific meaning, but I added a note clarifying the task. Thank you again for pointing this out!