About x*Pi years?
Edit - during maths exam (tomorrow) iI'l give this to the prof - to amuse himself.
(
smellysamlyingcable Seaman on,
Tue 7 Jan 2014, 12:03,
archived)
By all means, do.
Tell him you've been working on it since the paper was set and think you've nearly cracked it.
(
Mr. Tea 'ulmmm'/'mmneurgh',
Tue 7 Jan 2014, 13:00,
archived)