Re: invertable matrix - result as integer matrix

[Jaroslav Hajek]

On Sun, Jan 17, 2010 at 1:47 AM, orzech <address@hidden> wrote:
>
> Hi,
> I would like to get an invertible matrix in Octave but as integers matrix,
> so:
>
> x = [9,15;19,2];
> inv(x)
>
> and the result is:
>
> [-0.0074906, 0.0561798; 0.0711610, -0.0337079]
>
> but I would like to get [22,17;25,21] anyone knows how to convert this
> result? Many thanks.
>

I don't understand:
octave:7> [22,17;25,21] * [9,15;19,2]
ans =

   521   364
   624   417

this is clearly not remotely close to an inverse or its multiple.

kindly explain.

hth

-- 
RNDr. Jaroslav Hajek, PhD
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz