Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Intersect two matrix
Replies: 3   Last Post: Jun 14, 2013 7:54 AM

 Messages: [ Previous | Next ]
 Abel Posts: 31 Registered: 5/29/13
Re: Intersect two matrix
Posted: Jun 14, 2013 7:33 AM

dpb <none@non.net> wrote in message <kpetic\$m4o\$1@speranza.aioe.org>...
> On 6/14/2013 5:38 AM, Abel wrote:
> > Hello,
> >
> > I would like to intersect two matrix. Let's say :
> >
> > A=
> >
> > 1 2 3
> > 1 4 5
> > 1 3 8
> >
> > B=
> >
> > 1 2 6
> > 1 4 7
> > 1 3 9
> >
> > Then the result would be :
> >
> > C=
> >
> > 1 2 1 4
> > 1 3
> >
> > How could I do this ? Moreover, let's suppose A, B doesn't necessarly
> > have the same dimension.

>
> A)

> >> A(:,all(ismember(A,B)))
> ans =
> 1 2
> 1 4
> 1 3

> >>
>
> B) Well, is ityou expect for non-commensurate elements? The crystal orb
> is murky this morning.
>
> --

Okay thank you very much for A). Then what do you mean in B) ? Is that impossible ?

Date Subject Author
6/14/13 Abel
6/14/13 dpb
6/14/13 Abel
6/14/13 dpb