Mellotronists

Is it me, or do Jimmy's old SFX tapes have advanced Calculus formulas 
written on them?

http://www.kleonard.com/mellotron/vt0405/fx6.htm

     Congratulations Jerry, on bringing another one back from the brink.  One 
more SFX unit saved.  Wish I could have made it up there for that one.

      Nice job on the Web documentation as always, KL.  Can't wait to listen 
to your "Improvised Waves" tunes through headphones.

     But what's with the Calculus equations?  And here I thought I'd never 
need to use all of that advanced math I took in college ;-).  Do these formulas 
apply to my MKII also?

Ken M.