2 setxyrapport 56.693 setxunit 7.5 setborder 90 setangle_repere -1.5 7 setxrange -3 20 setyrange /quadrillagegray 0.2 def 0.5 setquadrillagexstep 1 setquadrillageystep quadrillage 1 1 settkstep .5 .5 setsubtkstep 1 2 setmkstep 18 setfontsize ticks marks traceaxes unites /f {setxvar #rpn# 2*x*(6-x) } def gsave bleu 1 setlinewidth continu 0 6 {f} Courbe /A {0.1 1.18} def /B {0.5 5.5} def /C {1 10} def /D {1.5 13.5} def /E {2 16} def /F {2.25 16.88} def /G {2.5 17.5} def /H {2.75 17.88} def /I {2.9 17.98} def /J {3 18} def /K {3.1 17.98} def /L {3.25 17.88} def /M {3.5 17.5} def /N {3.75 16.88} def /O {4 16} def /P {4.5 13.5} def /Q {5 10} def /R {5.5 5.5} def /S {5.9 1.18} def [ A B C D E F G H I J K L M N O P Q R S] plot $y=A(x)$ 5.25 8 [2 2] crtexlabel grestore /f {setxvar #rpn# 10 } def gsave rouge 1 setlinewidth pointilles 0 xmax {f} Courbe [C 1 0] ligne [Q 5 0] ligne $y=10$ 5.5 10 [2 2] urtexlabel grestore /f {setxvar #rpn# 16 } def gsave vert 1 setlinewidth pointilles 0 xmax {f} Courbe [E 2 0] ligne [O 4 0] ligne $y=16$ 5.5 16 [2 2] urtexlabel grestore gsave magenta 1 setlinewidth pointilles [3 -3 3 20] ligne [0 18 3 18] ligne $x=3$ 3 19 [2 2] crtexlabel grestore %% adresse IP : 82.230.142.134