Math Jokes, 2

Q: What’s the value of a contour integral around Western Europe?
A: Zero, because all the Poles are in Eastern Europe.
Addendum: Actually, there ARE some Poles in Western Europe, but they are removable!

Q: Why did the mathematician name his dog “Cauchy”?
A: Because he left a residue at every pole.

Q: What is a topologist?
A: Someone who cannot distinguish between a doughnut and a coffee cup.

Q: Why didn’t Newton discover group theory?
A: Because he wasn’t Abel.

Q: What do you get if you cross an elephant and a banana?
A: |elephant|*|banana|*sin(theta)