[scilab-Users] linsolve - is this a bug

[Celso Co]

I think linsolve is wrong. cco

-->a*inv(a)*b
 ans  =

    2.
    3.
    4.

-->a*linsolve(a,b)
 ans  =

  - 2.
  - 3.
  - 4.


On Sun, Aug 14, 2011 at 7:14 PM, bazcor <bazcor at metronet.co.uk> wrote:
> -->a=[1 3 2;2 1 -1;5 2 1];b=[2;3;4]
>
> -->inv(a)*b
>  ans  =
>
>    0.55
>    1.05
>  - 0.85  //correct result
>
>
> -->linsolve(a,b)
>  ans  =
>
>  - 0.55
>  - 1.05
>    0.85  // inverted signs
>
> is this a bug? I've checked the bug list and there's nothing there,maybe I'm
> using linsolve inappropriately?
>
> TIA for any comments .. Barry
>
>
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>



-- 
Eng'r Celso B. Co, PhD ECE
Mobile Nos; +63918 913 2123