Markdown is a lightweight, plain-text, markup language. It is used across the entire Stack Exchange network for post formatting (Questions, answers, wikis, chat) and comment formatting.

Markdown is a lightweight markup language.
It is used across the entire Stack Exchange network for formatting. Markdown is used for: Questions, Answers, Wikis, Chat and Comments -- although not all features are enabled in all contexts.

References:

Note that some sites also support . See the Mathjax wiki for more information.


Potential Gotchas: