set sample 1500 ## pour une petite taille : set size 1/2.,4/6. set size 1 set nokey set xrange [-2:2] set yrange [-20:20] f(x) = 8.0*x**3 - 4.0*x**2 -2*x -1 g(x) = 0 plot f(x) with lines, g(x) with lines, "rapm03a.ax1" with lines, "rapm03a.ax2" with lines pause -1