Instiki allows several different choices of markup language. Each Web can have its own choice of markup.
XHTML-Capable Markup Options
With any one of these choices, content is sent as application/xhtml+xml to compatible browsers. That means you can include inline SVG on your pages. If you see the cool Logo, that’s a signal that an XHTML-capable markup is in operation.
All of these are based on Maruku, and use its enhanced Markdown syntax.
Markdown+itex2MML
This is the default option. It requires itex2MML to be installed. It allows you to type itex equations, which are turned into MathML for display in capable browsers.
Markdown+BlahTeX/PNG
This option renders your equations to PNG pictures, instead of MathML. Setup is a little more complicated, and the rendering is not as nice, but you don’t need a MathML-capable browser to see the equations.
Markdown
If you don’t need equation-support, choose this option. Then $ has no special meaning (instead of being used to delimit equations).
HTML Markup Options
If you select one of these options, your content is sent as text/html, which means no equations, and no SVG support. These are included, largely for legacy reasons.