Re: How to deal with big matrix?
- To: mathgroup at smc.vnet.net
- Subject: [mg116633] Re: How to deal with big matrix?
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Tue, 22 Feb 2011 04:43:37 -0500 (EST)
Flatten@matrix[[All,All,1]
and
Flatten@matrix[[All,All,2]
Bobby
On Mon, 21 Feb 2011 18:29:01 -0600, Szymon Roziewski
<szymon.roziewski at gmail.com> wrote:
> Hello there,
>
> I have quite big matrix with let say 1000 rows and 1100 columns.
> Each of element of this matrix is a point on a surface e.g.
> {1.232,12.123}
> How can I quickly get first element of each point for whole matrix and
> put
> it in a vector (1000*1100 - this will be a length of that vector)
> without do
> it in a nested loop (Do[Do[...]])?
> And the similar to get the second element of each point into vector.
>
> kind regards,
> Szymon Roziewski
--
DrMajorBob at yahoo.com