Someone wants to know what the difference between +0 and −0 is.
You explain that there is no difference between +0 (which can be simply written as 0) and −0: In algebra, −x is defined to be the number y such that x + y = 0; since 0 + 0 = 0, it follows that −0 = 0.
But the person insists that +0 and −0 are different and even links you to the Wikipedia article on one-sided limit to try and prove you wrong.He claims (without a clue what the notation mean) that because
and
mean different things, therefore +0 and −0 must be different.
How would you feel? How I am now feeling is what. Because this just happened to me on another forum.![]()