In article , Just Wondering wrote:
J. Clarke wrote:

... my advisor told me about a convention he had recently attended
where an economist spent a hour and filled three boards with equations
deriving the formula for compound interest, like that was some important
new result.


We derived that formula in my engineering economics class. As I recall,
it took my professor about 10 minutes and less than half a page of paper.

There isn't much to it, that's for sure. I remember working it out on my own
as a college freshman. Used about half a page of paper, alright... but it did
take me more then ten minutes... maybe fifteen.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.