Not really the pun that you requested, but I heard a joke today that's worth sharing:

What is a derivative of a party?

A party thrown by selling the bottles from the primitive party!

What is the second derivative of a party?

A party thrown by selling the bottles from the primary derivative party. It also allows us to conclude how good was the primitive party!

:D

^^ Major turnoff, not even sure what we're integrating over. It's a joke of a joke!

It *might* be funny if mathematicians *were* sexy, but here we are, Devac.

Actually, this reminded me of a terrible problem I had for Mathematical Analysis 1 exam. It was the only problem that wasn't a proof and it took a form of some *really* hard integral in terms of *x*… but it was integration in terms of *dy*. XD

That's what you get when your lecturer is (in)famous for his legendary pedantry. Although credit where it's due, he was so surprised that some people actually managed to compute it that he gave points for it anyway, but it had to be spotless. I think that people scored only either 0/10 or 10/10 for this problem, no in-betweens.