Delimiters

Supported delimiters§

Delimiter	Mode
$...$	Inline
$$...$$	Display
\(...\)	Inline
\[...\]	Display

The content between delimiters is passed to katex-rs without the delimiters.

Examples§

<p>Inline: \( E = mc^2 \)</p>

<div>
\[
a = +\sqrt{2}
\]
</div>

This page is itself an example: the math below was rendered by katex-render during the site build.

Rendered inline: $E = mc^2$

Dollar inline: $a^2 + b^2 = c^2$

Skipped contexts§

Math is not processed inside:

• code
• pre
• script
• style
• textarea
• option
• svg
• math
• existing .katex or .katex-display markup

Escaped delimiters§

A backslash escapes the next character, so \$5 is not treated as the start of inline math.

Limitations§

• Bare LaTeX environments such as \begin{equation}...\end{equation} are not detected as delimiters. Wrap them in \[...\] or $$...$$ if you need them rendered.
• \label and \ref are not provided by KaTeX; use a renderer that supports equation references if you need them.
• Inline dollar delimiters can match currency-like prose. Keep math pages opt-in and avoid paired dollar signs in ordinary text.
• Only the delimiters listed above are recognized.