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Le_Forgeron wrote:
> Solving Third & Fourth degres polynomials is known since a long time (I
> have a book with that which was printed in the 60')
I'll bet to hell nobody actually *uses* the formulas above though. (!)
> Now, the sad thing is it soon stop working for fifth and higher.
I thought it only stops working in terms of "elementary" functions? As
in, there are more specialised functions you can use to go a little bit
higher still.
Also, I thought it was a case of being impossible to write a single
closed-form formula for the solution to an arbitrary high-order
polynomial. Like, if the polynomial has a special form, it might still
be solvable (possibly easily).
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