LaTeX code can be used by using the usual dollar signs:

$ e^x $

and for equations either a double dollar sign

$$ e^x $$

or

\begin{equation} e^x \end{equation}

or

\begin{align} e^x \end{align}

To edit an existing site, simply click on the pencil symbol on the right-hand side. You can also only edit a specific section, by clicking on the "edit" button.

A new page can be created by either following a link to a non-existing site and then clicking on the right-hand side on the pencil symbol "Create This Page". After saving the new page exists and is added automatically to the sidebar menu.

Alternatively a new page can be created by filling in the name in the "Add a new page:" form in the sidebar on the left-hand side. After entering the page name, choosing a category and then clicking on "Add page" the new site is created.