+input gdd;
+input gdd-rep;
+input gdd-lbl;
+input gdd-tra;
+input svgnames;
+
+lblPreambule := "\usepackage[frenchb]{babel}" &
+ "\usepackage[garamond]{mathdesign}" &
+ "\usepackage{amsmath}";
+
+input gdd-fct;
+input gdd-plt;
+
+labeloffset := 6;
+gddU:=1.2cm;
+
+vardef f(expr t) = t*t+2/t enddef;
+vardef g(expr t) = t+1/t enddef;
+vardef fp(expr t) = t*t enddef;
+vardef gp(expr t) = t enddef;
+
+def avecCrayon(expr t,c) = withpen pencircle scaled t withcolor c enddef;
+
+
+
+beginfig(1);
+
+
+ Repere(12,10,5,4,0.7,0.7);
+ Axes;
+ Debut;
+ Graduations; Unites(1);
+
+ drawoptions(withcolor LightSlateGrey);
+ trace Droite(Point(-4,-2),Point(4,2));
+ trace (3,0)--(3,2)--(0,2) dashed evenly;
+ trace (-1,0)--(-1,-2)--(0,-2) dashed evenly;
+ trace Courbe(fp,gp,-4,4,500);
+
+ trace Vecteur((3,2),(5,8/3)) avecCrayon(1,DeepPink);
+ trace Vecteur((-1,-2),(-2.8,-2)) avecCrayon(1,DeepPink);
+ trace Vecteur((-1,-2),(0.8,-2)) avecCrayon(1,DeepPink);
+
+ trace Courbe(f,g,-5,-0.1,100) avecCrayon(1.5,DarkCyan);
+ trace Courbe(f,g,0.1,5,100) avecCrayon(1.5,DarkCyan);
+
+ pointe Point(0,0);
+ pointe Point(3,2);
+ pointe Point(-1,-2);
+
+ Fin;
+
+
+endfig;
+
+end
\ No newline at end of file