On Wed, 21 Jan 2009 21:22:46 -0800, cc wrote:

> This is true...   Yes I have made animations where the road follows the car
> instead of the usual car-follows-the-road situation. :)   And yes I have
> been having to do trial and error if I want the car to follow the road.
> Trial and error is what I'm trying to make easier... faster.   I like your
> idea of differentiating from a pre-defined path...  Really turns the problem
> around. :)   I'd still like to figure out how to control the car directly in
> a clean, sybolic way if possible (as oppposed to numeric approximations,
> Riemann (sp?) sums etc.)  (I'm ignoring floating point roundoff)   When you
> say I "would have to compute the Bessel functions (or whatever)
> numerically," do you mean something like for example taking a sum of some
> formula as n goes from 1 to something aribitrarily large?  Anyway it's
> starting to sound doubtful that it can reasonably be done symbolically... or
> maybe I should say, not without inventing some new symbols... something to
> go along with the trig functions etc?...
> 
> -Charles

Charles, please fix your clock! :-)

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