Drag the blue handles to make one, two, or all three of the red roots disappear.
Notes: [list] [*]Root[], which works, doesn't recognize polynomials as polynomials. Proof: [math]\;\;\;[/math]Type a polynomial in the input bar. [math]\;\;\;[/math]GGB correctly recognizes this as what kind of object? [math]\;\;\;[/math]Press the button. (giggle) The proof is complete. [*]Slumberland has tricked GGB into accepting the polynomial anyway. How? [/list] The good news here, as always, is that since 11 year-olds are well versed in both numerical analysis and clumsy scripting languages --and can read our minds-- students won't find either the results or the syntax (examine it carefully) confusing. If you know Slumberland, then you know that a broken tool is enough to get the Sleepy King to pose, set up, and solve the problem from scratch. Here, I have broken up the problem like this: [i]To find the real roots of a 3rd degree polynomial[/i] [i]To find the real roots of the trigonometric polynomials which arise from the intersection of conic sections.[/i] [i]To find all roots (real and complex) of a polynomial of degree n (coefficents real or complex).[/i] Since Slumberland breaks all the tools in Geogebra by trying to solve elementary mathematical problems in an ordinary way, he is in the middle of setting up and solving a very great number of problems whose solutions are, at present, a total blank to him. Good. Onward If this documentation bothers you, please consider letting me make books private.