title: Plugins Plugins are used to add functionality to TiddlyWiki. For example, the ~KaTeX plugin uses an open source library from Khan Academy to typeset mathematical notation: $$\displaystyle \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\cdots} } } }$$ Next, TiddlyWiki has [[Translations]] in several languages.