A simple but difficult math problem: Place a knight on each square of a 7-by-7 chessboard. Is it possible for each knight to simultaneously make a legal move?
Solution: The board has 49 squares. Without loss of generality, suppose 24 of them are white and 25 are black. Consider the 25 knights resting on black squares. If they were each to make a legal move, they would have to move to 25 distinct white squares. Since there are only 24 white squares available, such a move can't be made.
Solution: The board has 49 squares. Without loss of generality, suppose 24 of them are white and 25 are black. Consider the 25 knights resting on black squares. If they were each to make a legal move, they would have to move to 25 distinct white squares. Since there are only 24 white squares available, such a move can't be made.
by zpconn August 18, 2009
What you do if you have a Beautiful Mind
by Not-so-bo-ri-ng September 30, 2003
by Jellowww January 30, 2008
Derivatives are some sort of mathness
by Paigethesnail July 30, 2011
Girl: ahhhh this is to hard
Boy: Tell me about it
So called intelligent person: haahha you don't know maths
Boy: Tell me about it
So called intelligent person: haahha you don't know maths
by Do I care January 31, 2008
Most pointless load of shite someone ever took the time over to make up.
No good to you after you leave the exam room, generally find that maths teachers usually become obsessive after 5-10 years - who wouldn't?
one fact about life is that 2+2=anything but 4 since that would require the fouritems to b exactly the same, a more useful idea is that 2+2=5, a famous radiohead song.
No good to you after you leave the exam room, generally find that maths teachers usually become obsessive after 5-10 years - who wouldn't?
one fact about life is that 2+2=anything but 4 since that would require the fouritems to b exactly the same, a more useful idea is that 2+2=5, a famous radiohead song.
by Duke of Earl January 31, 2005
I'm fucking tired of math... Fuck this nonsensical cryptic hieroglyph bullshit. If only somebody made it all easier, that person would deserve to go to heaven right now.
by Skate finder April 12, 2021