1 setxyrapport
25 setxunit
7.5 setborder
90 setangle_repere
-10 10 setxrange
-10 10 setyrange
/quadrillagegray 0.4 def
1 setquadrillagexstep
1 setquadrillageystep
quadrillage
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
/f {setxvar
#rpn#   (x^3+10*x)/(x^2+1)
} def
/g {setxvar
#rpn#   x
} def
gsave
   bleu
   .75 setlinewidth
   continu
   {f} courbe
grestore
gsave
   rouge
   .75 setlinewidth
   mixte
   {g} courbe
grestore