I think all the following jokes are funny. This is further evidence that I'm probably better suited to computational mathematics than to stand-up comedy.

• The self-help group for compulsive talkers: On and On Anon.
• What looks a lot like a tote bag? An asymptote bag.
• All famous mathematicians are Armenian. Just look at the names: Gaussian, Lagrangian, Hamiltonian, ...
• To estimate the time for a task, take your best estimate and double it. Apply recursively.
• I'm totally normal: < totally, David> = 0.
• The calculus of variations is a small part of the beach of changes.
• World ends at 10! More at 11.
• Get thee to a punnery!
• I'd like to fill out an apple-cation to become an orange-anion.
• C is for cookie my browser fetched for me; C is for cookie that's sent by TCP...
• If it ain't broke, you haven't meddled enough.
• Do differentiable manifolds have something to do with integrable exhaust?
• A baby eigensheep is... a lamb, duh. A baby eigencow says mu. And why are all my jokes about wavefunctions met with psis?