# XDOC — KaTeX Preview

Type a formula to see how it will render:
\left[ a + b * c^d \right] < \left( 3x^2 + \sum_{i=0}^n \frac{x^{i}}{2} \right)

Output:

Other resources:

- The katex-integration topic describes basic usage.
- The fancy-string-reader may help with escaping `\` characters.
- The KaTeX Wiki may have useful information.
- The `#katex` channel on irc.freenode.net may be able to help.