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Le_Forgeron <jgr### [at] freefr> wrote:
> a, b, c, d & e are the sliders, but I cannot get their values from the page.
Yeah - I tried looking through the page source to see if the initial slider
values were in there anywhere - but no. :|
> which is fine enough to ask wolfram to expand to get a polynomial
> expression;
>
> 81/4 x^4 y^4 z^2 + 12 x^4 z^4 + 8 x^3 z^4 + 21/2 x^2 y^6 z^2 + 18 x^2
> y^2 z^4 + 94 x^2 z^4 + 11 x y^6 z^2 + 26 x y^2 z^4 + 2 x z^4 + (9 y^8
> z^2)/4 - (11 y^6 z^2)/8 + (33 y^4 z^4)/4 + 55 y^2 z^4 + 8 z^6 + (49
> z^4)/4 + ... + x^12 + 2 x^11 - (17 x^10)/2 - (55 x^9)/2 - (47 x^8)/16 +
> (157 x^7)/2 + (427 x^6)/4 + (37 x^5)/2 - (565 x^4)/8 - (129 x^3)/2 - (75
> x^2)/4 + x - 12 y^2 + 1/16
> (84 terms)
>
> And it is just a transcription away from povray SDL with either poly syntax
> (good luck with the ordering of the coefficients)
Indeed, which is why I wrote that spreadsheet :D
The strangest thing I found, was that when I opened the page, copied the
equation, and pasted it into SURFER, I get the (!) error indicator. I have
corresponded with the folks over there once or twice about that, but it didn't
appear as though I was going to get very far. Which is a shame - it seems to
be a very nice rapid-visualization and development application for polynomial
equations.
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