alleqno – Automatic numbering of all equations
Redefines \[ ... \] to behave as a equation environment, and defines \[[ ... \]] to behave as an eqnarray environment.
Maybe you are interested in the following packages as well.
- eqnarray209: A fix for LaTeX 2.09 eqnarray
- rmthm: Use a roman font for theorem statements
- geophysics: Articles for the journal Geophysics
- schedule209: Typeset schedules