[Date Index] [Thread Index] [Author Index]

How to deal with big matrix?

• To: mathgroup at smc.vnet.net
• Subject: [mg116610] How to deal with big matrix?
• From: Szymon Roziewski <szymon.roziewski at gmail.com>
• Date: Mon, 21 Feb 2011 19:29:01 -0500 (EST)

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