\input{preamble-standalone.ltx} \begin{document} % Ex. No. 12 (Section 5.2.3 : Negative values) \begin{tikzpicture} \tkzInit[xmin = -40, xmax = 60, ymin = -40, ymax = 60, xstep = 20, ystep = 20] \tkzAxeXY \end{tikzpicture} \end{document}