In celebration of pi day, we thought we send along the MIT cheer. Tim the Beaver is MIT’s mascot, and he’s surely a wiz at calculus! You’re a beaver! We are beavers all, And when we get together, we do the beaver call! e to the u, du/dx, e to the x, dx; Cosine, secant, tangent, sine, 3.14159; Integral, radical, mu, dv; Slipstick, slide rule, MIT! Here’s MIT’s Women’s Crew displaying an enthusiastic launching cheer.