[scilab-Users] Question about Scilab-poly

[Sylvestre Ledru]

Le mercredi 17 décembre 2008 à 14:06 +0100, Sylvestre Ledru a écrit :
> Le mardi 16 décembre 2008 à 12:46 +0200, Sotos a écrit :
> > Hallo,
> > 
> > I have been using Scilab for about 3  months,as  a new  student.
> > My question...
> > What kind of number is that at the bottom...(4.406D-16).
> Note that Scilab 5 is results closer that what you expect:
> 
> -->a=[1 1 3
> -->1 2 3
> -->0 1 1 ]
>  a  =
>  
>     1.    1.    3.  
>     1.    2.    3.  
>     0.    1.    1.  
>  
> -->p= poly(a,"z")
>  p  =
>  
>               2   3  
>   - 1 + z - 4z + z   
My bad, I tried with different numbers than you :/
(btw, please, copy and paste instead of a screenshot next time).

Then, Michel's answer is much better than mine!

Sylvestre