# Absolute value |x| in LaTeX

Symbol Absolute value
Type of symbol Mathematics
Package (requirement) amsmath
Argument Yes
Latex command \lvert arg\rvert
Example \lvert a\rvert → |a|

You can use the \lvert arg \rvert command of the amsmath package to print the absolute value in a latex document. You can also use the keyboard pipe keyshift + |, but this is not a good practice.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
$$\lvert -8\rvert = 8$$
$$\lvert X+3\rvert =\lvert X-11\rvert$$
$$6\lvert 2x+3\rvert - 7 =2\lvert 2x+3\rvert + 1$$
$$\lvert 2x - 5\rvert > 11$$
\end{document}

Output :