RE: Joining 2D arrays
- To: mathgroup at smc.vnet.net
- Subject: [mg49140] RE: [mg49131] Joining 2D arrays
- From: "Owen, HL (Hywel)" <H.L.Owen at dl.ac.uk>
- Date: Mon, 5 Jul 2004 04:54:19 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Join[A,B] Also look at Append and AppendTo, and look at the functions above and below Join in the help menu. Cheers, Hywel > -----Original Message----- > From: Jonathan Greenberg [mailto:greenberg at ucdavis.edu] To: mathgroup at smc.vnet.net > Sent: 02 July 2004 07:02 > To: mathgroup at smc.vnet.net > Subject: [mg49140] [mg49131] Joining 2D arrays > > > 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}} > > --j >