In the following screenshots you can see how Pandoc converts expressions written in MediaWiki and LaTex to HTML which you can preview instantaneously on the Preview pane of Tinderbox. Generally, it works really well. Only some Latex symbols and equations cannot be converted by Pandoc.
As a result, for the first time I can write, preview and store my notes written in multiple markup languages using only one program, the amazing Tinderbox! I have never expected this to be a reality! 
- MediaWiki
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LaTeX markup
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Multimarkdown (using /Applications/Scrivener.app/Contents/Resources/MultiMarkdown/bin/multimarkdown)
For rendering mathematical expressions in Multimarkdown you just need to add the following line at the beginning of a note and be connected on the internet.
If you want to see clearly all the examples please click on the images or download them because the images are very tall.