proposed patch for ismember.m

[Ben Abbott]

I started with Søren's recent work on ismember.m, and believe we now  
have a Matlab compatible implementation of ismember.m

The texinfo has been updated and several new tests have been added.

I've attached the patch (which I hope is constructed properly) and a  
ChangeLog.

In the event, the patch doesn't take, please give me explicit  
instructions for how it should be created. I created the patch using

        cvs diff -u > ismember.patch

from the root directory of my CVS copy of octave.

Ben

ismember.patch
Description: Binary data

ismember.ChangeLog
Description: Binary data