[Solved] Why is the output different?

Question

The Numpy array when sliced differently, produces a different output (orientation wise)
Why does this happen?
https://code.sololearn.com/cqmpwg6t9N93/?ref=app

Answer 1

replace 2 with 1 and it becomes clear that first one is a range and second one a particular element.
analog to "infinity" [2:]
and infinity" [2]

Answer 2

모르겠어요.ㅋㅋㅋ