I am reading a textbook in which I find a writing problem:
Squaring them produces the $(n/2)$nd roots of unity.
Which one is correct? $(n/2)$nd or $(n/2)$th?
Can I ask such question on math.se?
I think the question should be reopened (and I will cast my reopen vote):
(I am aware that I could/should have posted the reopen request in the thread for reopen requests. But since this question already has its own thread and since there might be some discussion whether it is on-topic or not, I thought that this might be a better place.)