Other than that, it's pretty well translated.
That is my attempt to translate a joke I read in portuguese. Enjoy
So there were two functions walking together, f(x)= C and g(x)= ex. They saw a differential operator and f ran away, because she didn't want to become 0, but g stayed and said "you can't do anything against me, I'm ex". And the differential operator replied "well, looks like you're wrong, because I'm d/dy".
Q: Why are quantum physicists so poor at sex?
A student riding in a train looks up and sees Einstein sitting next to him. Excited he asks, "Excuse me, professor. Does Boston stop at this train?"
Edited by harvey45, 16 April 2011 - 11:42 PM.