For the Mathematicians.

[Roger Guay]

Yet, as I mentioned in the beginning, Graphing tools like Good Grapher on the Mac can do it. And, I wonder how?

Thanks,

Roger

> On Jan 23, 2022, at 4:51 PM, doc hawk via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Implicit functions are not, in general, directly plowable, as there is no general y(x) explicit function available.
> 
> You *could*use differentials and derivates to take small steps, if you’re careful and watch for points with multiple solutions (in the example function, when it crosses either axis)
> 
> I think the best you’re going to be able to do is find broad classes of functions that you can have solutions prepared to handle.
> 
> Either that, or a brute-forced grid drawing, in which you solve for all values of y for each value of x.  Even then, you’d need a way to connect them.
> 
> 
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