I guess this makes me officially a nerd, but I've been getting a real kick out of math humour just lately.
From this page: http://www.math.utah.edu/~cherk/mathjokes.html, we get such gems as:
'Noah's Ark lands after The Flood and Noah releases all the animals, saying, "Go forth and multiply." Several months pass and Noah decides to check up on the animals. All are doing fine except a pair of snakes. "What's the problem?" asks Noah. "Cut down some trees and let us live there," say the snakes. Noah follows their advice. Several more weeks pass and Noah checks up on the snakes again. He sees lots of little snakes; everybody is happy. Noah says, "So tell me how the trees helped." "Certainly," reply the snakes. "We're adders, and we need logs to multiply.'
"Life is complex. It has real and imaginary components. "
"A math professor is one who talks in someone else's sleep."
"This is a one line proof...if we start sufficiently far to the left."
"Do you love your math more than me?"
"Of course not, dear - I love you much more."
"Then prove it!"
"OK... Let
R be the set of all lovable objects..."
"A topologist is a person who doesn't know the difference between a coffee cup and a doughnut."
"Statisticians probably do it."
'A mathematician, a physicist, and an engineer were traveling through Scotland when they saw a black sheep through the window of the train.
"Aha," says the engineer, "I see that Scottish sheep are black."
"Hmm," says the physicist, "You mean that some Scottish sheep are black."
"No," says the mathematician, "All we know is that there is at least one sheep in Scotland, and that at least one side of that one sheep is black!" '
'A team of engineers were required to measure the height of a flag pole. They only had a measuring tape, and were getting quite frustrated trying to keep the tape along the pole. It kept falling down, etc. A mathematician comes along, finds out their problem, and proceeds to remove the pole from the ground and measure it easily. When he leaves, one engineer says to the other: "Just like a mathematician! We need to know the height, and he gives us the length!"'
"It has been said that physicists stand on one another's shoulders. If this is the case, then programmers stand on one another's toes, and software engineers dig each other's graves."
"Cat Theorem: A cat has nine tails.
Proof: No cat has eight tails. A cat has one tail more than no cat. Therefore, a cat has nine tails."
"Q: Why did the chicken cross the Moebius strip?
A: To get to the other ... er, um ... "
"Math problems? Call 1-800-[(10x)(13i)2]-[sin(xy)/2.362x]."
"Q: How many mathematicians does it take to screw in a light bulb?
A: None. It's left to the reader as an exercise."
"Young man, in mathematics you don't understand things, you just get used to them."