Latex in Wiki
You can use latex in a wiki page, using the [[latex()]] command. This is ideal for marking up mathematical notation, or even for simple figures.
Alternatively, add #format inline_latex, then use $..$ or $$..$$.
Example
[[latex(\usepackage{dsfont} % $$\mathds{C}$$)]]
Display
dvipng error! exitcode was 2 (signal 0), transscript follows: