500 setwidth 250 setheight -10 100 setxrange -.25 1.25 setyrange 10 .25 setmkstep traceaxes axesarrow marks rouge 1.5 setlinewidth xmin 40 {pop 0} (-\() Courbe 40 50 {pop .25} (*-\() Courbe 50 60 {pop .75} (*-\() Courbe 60 xmax {pop 1} (*-) Courbe