- jokes about pi
      
        - mostly involve homonyms for pie 
 
- jokes about schrodinger's cat 
- jokes where the joke is just that some numbers in a common phrase or sentiment are expressed in a needlessly complicated way
      
        - exception -- "E / c2 . sqrt(-1) . PV / nR ." 
 
         sep 12 2012 ∞
 sep 12 2012 +