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\begin{tikzpicture} \tkzInit[xmin=0.00, xmax=0.05, ymin=1.2200,ymax=1.2215, xstep=0.01, ystep=0.0005] \tkzAxeXY \tkzDefPoint(.04,1.22025){I} \tkzDrawPoint(I) \end{tikzpicture}