Am Mittwoch 13 Februar 2008 04:30:12 schrieb Barton Willis:
> (%i12) a:[matrix([1],[2]), matrix([3],[4])];
> (%o12) [matrix([1],[2]),matrix([3],[4])]
> (%i13) b:matrix([0],[0]);
> (%o13) matrix([0],[0])
> (%i14) rreduce('addcol,cons(b,a));
> (%o14) matrix([0,1,3],[0,2,4])
This is the solution I looked for. I missunderstood the addcol comand,
respectly the list argument.
thx
Martin