OK, to understand this joke you need to know a bit of calculus.

A Guy walks into a bar full of functions of all kinds and forms. He starts yelling :
-I want evrybody out of here right know or ill integrate and derive the lot of you! itll be horrible!
Evryfunton in the bargoes nuts, jump out windows, run out the doors in absolut panic. Only one stays at the bar. The guy walks up to him and says :
- didint you hear what i said?! aren you scared?!?
The functon at the bar looks at him and says
- No. I'm e to the x.

I dont know why I find it so funny! I just do!...

If you have any other math jokes...Post away!