load("docdraw.mac");
docdraw2d("figures/draw_logx_secondary",
	grid = true,
	key="x^2, linear scale",
	color=red,
	explicit(x^2,x,1,100),
	xaxis_secondary = true,
	xtics_secondary = true,
	logx_secondary = true,
	key = "x^2, logarithmic x scale",
	color = blue,
	explicit(x^2,x,1,100)
)$