\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 78 (Section  8.12.3 : Example with \tkzcname{tkzPointShowCoord} and \tkzname{xstep})

\begin{tikzpicture}[xscale=3,yscale=2]
   \tkzInit[xmax=15,ymax=15,
           xstep=10,ystep=10]
   \tkzAxeXY
   \tkzDefPoint(10,10){a} \tkzDrawPoint(a)
   \tkzPointShowCoord(a)
   \tkzLabelPoint(a){$A_1$}
\end{tikzpicture}

\end{document}