It's *not* a pearoast! It's completey different!
From the Maths challenge. See all 31 entries (closed)
( , Mon 29 Dec 2014, 12:07, archived)
I changed the ∪ to a ∩.
From the Maths challenge. See all 31 entries (closed)
( , Mon 29 Dec 2014, 12:07, archived)