dectab – Align columns on a decimal point
The package defines the command \dec, which allows a construct such as ...& \dec -1.461 &... in a tabular c column; the column will then be centred on the decimal point in the number.
Maybe you are interested in the following packages as well.
- hex: Print a counter in hexadecimal
- bigtabular: Tabulars that can split at page boundaries
- seceqn: Number theorems by section
- exam209: Process exam questions and answers (LaTeX 2.09)