table hints

[Jon]

Since nobody pointed me to the Table doc requested in an earlier 
message, here are some specific questions:

1) how can I specify the width of each column, or must they all be the 
same width?
2) how do I specify the number of rows and columns in the data in the 
table?  By simply filling it with data of the appropriate "shape"?  If 
it is this "simple", why do the tables show additional columns that are 
"empty"?

:)

Jon