This can be read:
Integral zee-squared dee-zee
from one to the cube root of three
times the cosine
of three pie over nine
equals log of the cube root of ‘e’.
Credit for this has to go to Betsy Devine and Joel E. Cohen’s book “Absolute Zero Gravity”. (Simon and Schuster, 1992) page 37. But I found it, along with some other really bad math limericks, at http://www.trottermath.net/humor/limricks.html.
Number 20 is good if you like riddles...