I mean, you would think you could just give the line series the X value and it 
could tell you the current Y value.  Couldn't be that simple, right?

--- In flexcoders@yahoogroups.com, "Mike" <msl...@...> wrote:
> I did something like this for EBay.  I defined a hierarchy of Equation 
> classes, including linear, nth order polynomials, power law.  The base 
> Equation class provided common functionality such as data initialization and 
> solving for the unknown gien a variable.  Applications could then be written 
> that called the library function in real time, so a mouse could be tracked 
> while live X and Y intercepts were displayed, etc.  Sorry I can't offer the 
> source code.  Hopefully this gives you an idea of how you might proceed.
> Mike

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