[p]I had a certain sympathy with this article in its nostalgic harking-back to the days of the old BASIC arrays. (actually, very few BASIC implementations got as far as Matrix Mathematics, or any other really useful stuff). I started to write a forum entry to maybe describe a few ways I tackle the sort of problem that requires arrays and matrices. (Mostly statistical stuff, which is nowadays given to you as part of the BI tools but it provides a way of solving all sorts of odd problems in SQL). Then Robyn got involved, it all escalated, got too big for a forum entry, and we ended up developing it into a workbench which we've now posted on Simple-Talk as the SQL Server Matrix Workbench.[/url][/p]

[p]It's a little bit esoteric, but Robyn and I hope that someone finds it useful![/p]