Here's a limerick - it looks better on paper.

           3  
          \/3
        /
       |  2            3 x 3.14           3_
       | z dz  x  cos( ----------) = ln (\/e )
       |                  9
      /
       1

   Which, of course, translates to:

   Integral z-squared dz
   from 1 to the cube root of 3
   times the cosine
   of three pi over 9
   equals log of the cube root of 'e'.

   And it's correct, too!    
   Each side evaluates to 1/3.