Recent content by cppabstract

Yeah, it is pi (all the time I refer to it as pie :P). I can't find the symbol though. EDIT: Nevermind.

Hello! This is my first post on these forums. So I was stuck with this question in my Mathematical Analysis exam, and it is as follows: ƒ(x) = 0 if x ∉ ℚ and (p + π) / (q + π) - (p / q) if x = (p / q) ∈ ℚ (reduced form). 1- Prove ƒ is discontinuous at all rational numbers except 1: This is...