|Date:||February 23rd, 2007 08:10 pm (UTC)|| |
I never learned that one, but I recall one from calculus.
Hodehi minus hideho over hoho
This is a mnemonic
for the Quotient Rule
. Though I must admit I remembered the mnemonic but I had to look up what it was for. :)
|Date:||February 23rd, 2007 08:16 pm (UTC)|| |
oh yeah.... we learned that one too, but I had forgotten it.
If I tried to use that mnemonic, I'd always wind up swapping hideho and hodehi. I was taught the trickle-down rule: the thing on top gets differentiated first.