Silly question on Matrices

*To*: mathgroup at smc.vnet.net*Subject*: [mg111532] Silly question on Matrices*From*: "Eduardo M. A. M.Mendes" <emammendes at gmail.com>*Date*: Wed, 4 Aug 2010 05:50:35 -0400 (EDT)

Hello there I am new to Mathematica. In one of my attempts to understand how it works, I tried the following example A={{1,2,3},{4,5,6},{7,8,9}} //MatrixForm The result seems to be a matrix 3x3 but when I try A[[1][1]], the whole first line shows up instead of just one element. If I don't use MatrixForm, it works fine. How can I see a matrix in nice format without wrecking everything? Many thanks Ed