What are the best Math jokes you know?
An e^x and a Constant were walking down the street.
A Differentiator walked up and the Constant began to run.
e^x asked him, "What are you doing?"
Constant replied, "If I meet a Differentiator, I will disappear!"
e^x cheekily said, "well, I am e^x, I have no fear of a Differentiator!" as he walked up to it.
"Hi, I am e^x!", he said.
The Differentiator said, "Hi, I am d/dy!"