Georacer, I was going to respond angrily -- then I realized that my feeble brain mixed up the product rule with the chain rule. Thanks for correcting me. My only excuse is that I took calculus before most of you were born, so I can claim feeble-mindedness and forgetfulness. Of course, my wife would just claim it's overall incompetence.I think the chain rule has nothing to do here.
by Aaron Carman
by Aaron Carman