# [Tex/LaTex] Turn off line numbering in algorithm2e

algorithm2eline-numbering

I have the following preamble for algorithm2e:

   \usepackage[ruled,vlined,linesnumbered,resetcount,algochapter]{algorithm2e}


I have many algorithms, in on of the algorithm as follows:

 \begin{algorithm}[t!]
\centering
nonumbering
\caption{CAmple}\label{algoCPOR}
\end{algorithm}


I do not want the line nonumbering (only that line) to be numbered, how should I achieve this?

Depending on your use-case, you can either use \LinesNotNumbered or \LinesNumberedHidden to temporarily remove lines numbers in an algorithm. Under the latter, \ShowLn prints the line number for that specific line (if you wish to intermix showing/not):

\documentclass{book}
\usepackage[ruled,vlined,linesnumbered,resetcount,algochapter]{algorithm2e}% http://ctan.org/pkg/algorithm2e
\begin{document}

{\LinesNumberedHidden
\begin{algorithm}[ht]
\centering
nonumbering
\caption{CAmple1}\label{algoCPOR1}
\end{algorithm}}

\begin{algorithm}[ht]
\centering
nonumbering
\caption{CAmple2}\label{algoCPOR2}
\end{algorithm}

\LinesNumberedHidden
\begin{algorithm}[ht]
\centering\ShowLn
nonumbering
\caption{CAmple3}\label{algoCPOR3}
\end{algorithm}
\end{document}