Présentation de 2502.jps

25 setxunit
7.5 setborder
90 setangle_repere
-2 10 setxrange
-2 10 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
/f {setxvar
#rpn#   x^3 + 8x^2 + 17x + 10
} def
/g {setxvar
#rpn#   1
} def
gsave
   bleu
   .75 setlinewidth
   pointilles
 1 1  {f} Courbe
grestore
gsave
   rouge
   .75 setlinewidth
   mixte
 1 1  {g} Courbe
grestore
gsave
   bleu
   continu
   /hstep 4 store
   /hangle 15 store
 2 3  {pop ymax 1 add} {f} Hachcourbes
grestore
gsave
   orange
   continu
   /hstep 6 store
   /hangle 45 store
   {f} {g} hachcourbes
grestore
gsave
   gris
   continu
   /hstep 4 store
   /hangle -45 store
   {pop ymin 1 sub} {g} hachcourbes
grestore
2.8 settailletangente
-3 {f} tangente