\input{preamble-standalone.ltx} \begin{document} % Ex. No. 98 (Section 14.1.1 : Example) \begin{tikzpicture} \tkzInit[xmax=6] \tkzDrawX \tkzHTick[mark=ball,mark size=3pt]{pi/2} \tkzHTick[mark=*, mark options={color=purple}]{2*exp(1)} \end{tikzpicture} \end{document}