Re: matrix operations
- To: mathgroup at smc.vnet.net
- Subject: [mg46393] Re: matrix operations
- From: bobhanlon at aol.com (Bob Hanlon)
- Date: Mon, 16 Feb 2004 23:42:55 -0500 (EST)
- References: <c0qjb3$k8q$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
x=Array[a,{4,5}];
To extract column n
n=2;
x[[All,n]]
{a(1,2),a(2,2),a(3,2),a(4,2)}
Transpose[x][[n]]
{a(1,2),a(2,2),a(3,2),a(4,2)}
#[[n]]&/@x
{a(1,2),a(2,2),a(3,2),a(4,2)}
Bob Hanlon
In article <c0qjb3$k8q$1 at smc.vnet.net>, "paolo tarpanelli"
<tarpanelli at libero.it> wrote:
<< How can i extract a column from a matrix and transform that column in a
vector to make operation with this???