
Re: latex question: norm and closure operator symbols
Posted:
Jun 3, 2011 6:17 PM


On Jun 3, 11:32 am, Matt <m...@themattfella.xxxyyz.com> wrote: > I could define norm as a mapping from a vector space to the reals like: > > \ \cdot \:
Better:
\ cdot \ \colon
The difference between : and \colon is spacing. Just check it out. In you particular case, \colon is the most appropriate.
Regarding \bar vs \overline. \bar is fixed length. \overline is extensible. So \bar{\cdot} will look nicer that \overline{\cdot}. But you can pad \cdot with some extra spaces around, like:
\overline{\,\cdot\,}
So overline, in fact, is more flexible. You can choose the length most pleasing to your heart. And yes, you need to use strut to push the bar upward.

