Re: Joining 2D arrays

*To*: mathgroup at smc.vnet.net*Subject*: [mg49156] Re: Joining 2D arrays*From*: Bill Rowe <readnewsciv at earthlink.net>*Date*: Mon, 5 Jul 2004 04:54:48 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

On 7/2/04 at 2:01 AM, greenberg at ucdavis.edu (Jonathan Greenberg) wrote: >This is a total newbie question, but if I have two table of a fixed >number of columns and an arbitrary number of rows, whats the >easiest/most efficient way to join them together (basically, how do >I add entries to a "database" in Mathematica) -- that database will >eventually be perhaps > 1,000,000 entries long... >A={{1,2},{3,4},{5,6}} >B={{6,7},{8,9},{10,11},{12,13}} >I want: >{{1,2},{3,4},{5,6},{6,7},{8,9},{10,11},{12,13}} Join[A, B] {{1, 2}, {3, 4}, {5, 6}, {6, 7}, {8, 9}, {10, 11}, {12, 13}} -- To reply via email subtract one hundred and four