## Problem with redefined section

###### Maxime 2013-01-04 less than 1 minute read

Section is redefined with a classical:

``````\renewcommand\section{\@startsection{section}{1}{\z@}
{-3.5ex \@plus -1ex}
{ 2.3ex \@plus .2ex}
{\bfseries}
}
``````

Suppose you’re using an unnumbered section (\section*). Everything is working fine, until you need to use `mathtools` for displaying an equation. And now, your unnumbered section is numbered, and its title is `*...`

The problem is just, you just put a new line between the `}}` where it sould not have been. Just rewrite your definition, and it’ll be working again:

``````\renewcommand\section{\@startsection{section}{1}{\z@}
{-3.5ex \@plus -1ex}
{ 2.3ex \@plus .2ex}
{\bfseries}}
``````