\overset - LaTeX over-script command

\overset{*}{=}

Renderer support

Package	MathJax	KaTeX	XeTeX
`base`	MathJax: Full	KaTeX: Full	XeTeX: None

Syntax#

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

Argspec m m — two mandatory arguments. Reading argspecs

X \overset{\mathrm{iid}}{\sim} \mathcal{N}(0,1)

f(x) \overset{\mathrm{def}}{=} x^2

A \overset{f}{\longrightarrow} B

\overset{\text{def}}{=}

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

\stackrel{#1}{#2}approximate
Styles might differ, and \\stackrel typically expects a relation symbol as the base

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