March 6th, 2008, 10:13 am
QuoteOriginally posted by: PaulQuoteOriginally posted by: AthleticoNonlinearities always make things untidy -- particularly a logo If you are even considering a formula as a logo then you have far more to worry about than tidiness!Yes, throw in friction. Or how about posing the problem (calculus of variations, I guess) for the fastest slope between two points (given wind resistance and friction)?PYes, posing the probelm is a good idea. The original post wanted any formula? For the old-timers, a formula telling the velocity at (x,y,t) on the slope would be more useful.