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.
- hvdashln: Horizontal and vertical dashed lines in arrays and tabulars
- seceqn: Number theorems by section
- acronym209: An algorithm package developed for LaTeX 2.09
- espo: Customisation for Esperanto