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Invisible a écrit :
> 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. (!)
>
Probably not. If you consider that most - if not all - computers
calculate square roots by using an iterative method, it would probably
be faster to use it on the original polynomial than to use it 8 times on
smaller polynomials, as in the solution you linked to.
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/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/* flabreque */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/* @ */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/* gmail.com */}camera{orthographic location<6,1.25,-6>look_at a }
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