\section{Using  an orthogonal coordinate system}  
\subsection{Coordinate system with \tkzcname{tkzRep}}   
\hypertarget{rep}{}
\begin{NewMacroBox}{tkzRep}{\oarg{local options}}% 
\begin{tabular}{lll}%
options & default & definition  \\
\midrule
\TOline{line width}{|0.8pt|}{line width defines the width of the line }   
\TOline{xlabel}{|$\vec{\imath}$|}{label for the abscissa axis}  
\TOline{ylabel}{|$\vec{\jmath}$|}{label for the ordinate axis}  
\TOline{posxlabel }{|below=2pt|} {Label position}
\TOline{posylabel }{|left=2pt|} {Label position }
\TOline{xnorm}{|1|} {norm of the x-vector}  
\TOline{ynorm}{|1|}{vector norm in y}
\TOline{color}{|black|}{line colour}
\TOline{colorlabel}{|black|}{label color }
\end{tabular}
\end{NewMacroBox}

\subsubsection{Some modifiable styles }
 \begin{tkzltxexample}[small]
 \tikzset{xlabel style/.style                =   {below      =   3 pt,
                                                 inner sep   =   1pt,
                                                 outer sep   =   0pt}}                                       
 \tikzset{ylabel style/.style                =   {left       =   3 pt,
                                                 inner sep   =   1pt,
                                                 outer sep   =   0pt}}
 \tikzset{xaxe style/.style                  =   {>          =   latex,  ->}}  
 \tikzset{yaxe style/.style                  =   {>          =   latex,  ->}}
 \end{tkzltxexample}
 
\subsubsection{Example of use }
\begin{tkzexample}[small]
\begin{tikzpicture}
  \tikzset{xaxe style/.style={-}}
  \tikzset{yaxe style/.style={-}} 
  \tkzInit[xmax=4,ymax=4]
  \tkzGrid    
  \tkzDrawX
  \tkzDrawY  
  \tkzRep[color=red,ynorm=2]
\end{tikzpicture}
\end{tkzexample}



\vspace{12pt}   
For those who use \tkzname{french} with \tkzname{babel}, in case of problems with version 3 of pgf, just load the \tkzname{babel} library. \TIKZ\ was indeed sometimes allergic to the active characters.

\endinput