RD-BH

P!/2±3±1

Nah, when I was in the university in Physics, I've heard interesting stories from some friends from Math dept. about several maths teachers being nuts...both in their competence...and socially.

Myself I have felt examples of such...particular teachers. I suppose for being good at maths, you must to be a tad crazy.

Mathematicians always go wrong to the point of soliloquy.

Months!
... 6 to be precise 8)

Personal note:
... I am about to go seriously offline.
... Months or even Years (hopefully months).