cases - LaTeX piecewise cases environment

\begin{cases} x & \text{if } x > 0 \\ 0 & \text{otherwise} \end{cases}

Renderer support

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

Syntax#

\begin{cases}…math body\end{cases}

Takes no arguments. Reading argspecs

\begin{cases} x & x\ge 0 \\ -x & x<0 \end{cases}

f(x)=\begin{cases} 1 & \text{if } x\in\mathbb{Q} \\ 0 & \text{otherwise} \end{cases}

A single column is enough when there is no condition to align.

\begin{cases} x+y=1 \\ x-y=0 \end{cases}

TeXForm reads the environment body in math mode.

`ams`
Input	Case	MathJax	KaTeX	XeTeX
`\begin{cases} a & b \\\\ c & d \end{cases}`	Positive · baseline	Pass	Pass	Pass