25 setxunit
7.5 setborder
90 setangle_repere
-3 3 setxrange
-1 10 setyrange
%[1 1 .5 .5 .1 .1] {orange} Quadrillage
1 1 settkstep
.5 .5 setsubtkstep
1 1 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
/f {setxvar
#rpn#   x^2
} def
setTimes
boxit
<tex>
$f(x)=x^2$
</tex>
() 1 9 cctexlabel


/A {2 4} def
A dashpoint


(A) A drtext

(O) O drtext
gsave
   bleu
   .75 setlinewidth
   continu
   {f} courbe
grestore