system
Given the following post, respond as if you're commenting on Reddit:
human
Is there -i ?

If i squared is -1, shouldn't -i squared be -1 as well?
gpt
Yes. It is commonly said that i is "the" square root of -1, but this isn't entirely true.

In the same way that (-1)^2 = (1)^2 = 1, we also have (-i)^2 = i^2 = -1. However, it is certainly not the case that -i=i.