\dfrac - LaTeX display fraction command

\dfrac{a}{b}

Renderer support

Package	MathJax	KaTeX	XeTeX
`ams`	MathJax: Full	KaTeX: Full	XeTeX: Full

Syntax#

\dfracm{a}math contentm{b}math content

Argspec m m — two mandatory arguments. Reading argspecs

\dfrac stays large even in inline or nested positions.

\dfrac{a}{b}

a_0+\dfrac{1}{a_1+\dfrac{1}{a_2}}

\dfrac{1}{2\pi}\int f(\theta)\,d\theta

TeXForm parses this entry as prefix syntax; the package determines its argument specification.

Rewrite the AMS display-style fraction command to frac.

\dfrac{#1}{#2} \frac{#1}{#2}

\genfrac{}{}{}{0}{#1}{#2}exact
This AMS mapping fixes the first four \genfrac parameters to empty delimiters, empty thickness, and style 0.
{\displaystyle \frac{p}{q}}exact

`ams`
Input	Case	MathJax	KaTeX	XeTeX
`\dfrac{a}{b}`	Positive · baseline	Pass	Pass	Pass
`\dfrac a{b}`	Positive · bare[0]	Pass	Pass	Pass
`\dfrac{a}b`	Positive · bare[1]	Pass	Pass	Pass