Eh?
It's Pi in hexadecimal...
(
Darkpie 3.243F6A8885A308D31319,
Fri 2 Sep 2011, 13:46,
archived)
Ah!
Thats because of the amount of times 2xPi appears in maths.... to make it easier, one symbol shall be used.
Makes it a little easier to write longer equations
(
Darkpie 3.243F6A8885A308D31319,
Fri 2 Sep 2011, 14:01,
archived)