[texhax] how to make nonreferred equations notnumbered

[Lars Madsen]

Victor Ivrii wrote:
> Is there any package which looks if equation \label{mylabel} is
> referred and if not treats it as {equation*}
> 
> May be there is script doing this?
> 
> foo.aux stores label info but where is stored info about references
> (except foo.tex)?
> 
> Thank you in advance
> 
> 
> Victor
> 

mathtools

in the latest version you can even tell it if there are some equations 
that are not refered to but who you whould like to be numbered anyway.

-- 

/daleif